bundle/manifest.json

{
 "version": "1.0",
 "created": "2026-07-24T17:59:21+00:00",
 "seed": 0,
 "question": "Which candidate better replaces the material of the highlighted surface while keeping everything else (scene, object shape, lighting) unchanged?",
 "tags": [
  "wrong-material",
  "scene-changed",
  "geometry-changed",
  "lighting-off"
 ],
 "n_shards": 1,
 "systems": [
  "bagel-A",
  "bagel-B",
  "bagel-C",
  "flux-kontext",
  "flux-kontext-inpaint",
  "flux-kontext-ref",
  "gpt-image-2-A",
  "gpt-image-2-B",
  "gpt-image-2-C",
  "gt",
  "identity",
  "instruct-pix2pix",
  "nanobanana2lite-A",
  "nanobanana2lite-B",
  "nanobanana2lite-C",
  "omnigen2-A",
  "omnigen2-B",
  "omnigen2-C",
  "paint-by-example",
  "paste",
  "qwen-image-edit",
  "qwen-image-edit-inpaint",
  "qwen-image-edit-ref",
  "sd35-inpaint",
  "sdxl-inpaint"
 ],
 "pairs": [
  {
   "pair_id": "r00223",
   "task_uid": "a5e54004",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/a5e54004.jpg",
   "img_b": "images/sys/nanobanana2lite-A/a5e54004.jpg",
   "spec": {
    "overlay": "images/spec/a5e54004_overlay.jpg",
    "reference": "images/spec/a5e54004_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the sofa with dark green veined marble, keeping the wall geometry, furniture, lighting, and surrounding room unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00109",
   "task_uid": "6ff8de26",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/6ff8de26.jpg",
   "img_b": "images/sys/instruct-pix2pix/6ff8de26.jpg",
   "spec": {
    "overlay": "images/spec/6ff8de26_overlay.jpg",
    "reference": "images/spec/6ff8de26_ref.jpg",
    "instruction": "Replace the large coral fabric headboard behind the white daybed with navy blue suede matching the reference, keeping its shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00129",
   "task_uid": "d46a1841",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/d46a1841.jpg",
   "img_b": "images/sys/instruct-pix2pix/d46a1841.jpg",
   "spec": {
    "overlay": "images/spec/d46a1841_overlay.jpg",
    "reference": "images/spec/d46a1841_ref.jpg",
    "instruction": "Replace the three front panels of the central reception desk with warm brushed brass, preserving the desk’s shape, dark wood countertop, side panel, and the rest of the bedroom suite.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00064",
   "task_uid": "f11e813e",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/f11e813e.jpg",
   "img_b": "images/sys/flux-kontext/f11e813e.jpg",
   "spec": {
    "overlay": "images/spec/f11e813e_overlay.jpg",
    "reference": "images/spec/f11e813e_ref.jpg",
    "instruction": "Replace the large central feature wall behind the reception desk with dark green veined marble, keeping everything else unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00116",
   "task_uid": "f96dc274",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/f96dc274.jpg",
   "img_b": "images/sys/instruct-pix2pix/f96dc274.jpg",
   "spec": {
    "overlay": "images/spec/f96dc274_overlay.jpg",
    "reference": "images/spec/f96dc274_ref.jpg",
    "instruction": "Replace the full-height red curtains along the right-side restaurant windows with deep emerald green velvet, preserving their folds, dimensions, and position while keeping everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00244",
   "task_uid": "21573b91",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/21573b91.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/21573b91.jpg",
   "spec": {
    "overlay": "images/spec/21573b91_overlay.jpg",
    "reference": "images/spec/21573b91_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the coffee table with the reference's warm natural cane weave, preserving their shapes, positions, seams, and the rest of the lounge.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00427",
   "task_uid": "b3ae60f0",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/b3ae60f0.jpg",
   "img_b": "images/sys/gpt-image-2-B/b3ae60f0.jpg",
   "spec": {
    "overlay": "images/spec/b3ae60f0_overlay.jpg",
    "reference": "images/spec/b3ae60f0_ref.jpg",
    "instruction": "Replace the large red-painted wall behind the sectional sofa with warm brushed brass panels, keeping the room and furnishings unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00246",
   "task_uid": "f9f9c671",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/f9f9c671.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/f9f9c671.jpg",
   "spec": {
    "overlay": "images/spec/f9f9c671_overlay.jpg",
    "reference": "images/spec/f9f9c671_ref.jpg",
    "instruction": "Replace the large rectangular reception counter in the center with dark green veined marble, preserving its shape, position, lighting, and the surrounding Japandi interior.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00090",
   "task_uid": "973e85fb",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/973e85fb.jpg",
   "img_b": "images/sys/omnigen2-A/973e85fb.jpg",
   "spec": {
    "overlay": "images/spec/973e85fb_overlay.jpg",
    "reference": "images/spec/973e85fb_ref.jpg",
    "instruction": "Replace the full-height curtains across the rear wall with charcoal grey boucle fabric, preserving their folds, dimensions, and position while keeping the rest of the living room unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00397",
   "task_uid": "1d2b69da",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/1d2b69da.jpg",
   "img_b": "images/sys/omnigen2-C/1d2b69da.jpg",
   "spec": {
    "overlay": "images/spec/1d2b69da_overlay.jpg",
    "reference": "images/spec/1d2b69da_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with warm brushed brass panels, preserving its shape, base, position, and the rest of the lobby unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00455",
   "task_uid": "a8a47182",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/a8a47182.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/a8a47182.jpg",
   "spec": {
    "overlay": "images/spec/a8a47182_overlay.jpg",
    "reference": "images/spec/a8a47182_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs surrounding the round wooden table with charcoal grey boucle fabric, keeping their frames, shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00044",
   "task_uid": "5c87a8ce",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/5c87a8ce.jpg",
   "img_b": "images/sys/bagel-A/5c87a8ce.jpg",
   "spec": {
    "overlay": "images/spec/5c87a8ce_overlay.jpg",
    "reference": "images/spec/5c87a8ce_ref.jpg",
    "instruction": "Replace the large red feature wall behind the low wooden console with dark green veined marble, preserving its dimensions and keeping the rest of the living room unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00024",
   "task_uid": "6ebf7f4e",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/6ebf7f4e.jpg",
   "img_b": "images/sys/qwen-image-edit/6ebf7f4e.jpg",
   "spec": {
    "overlay": "images/spec/6ebf7f4e_overlay.jpg",
    "reference": "images/spec/6ebf7f4e_ref.jpg",
    "instruction": "Replace the coral upholstery on all four dining chairs around the black table with cognac tan leather, keeping their shapes, positions, frames, and the rest of the office lobby unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00192",
   "task_uid": "4c2f33c2",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/4c2f33c2.jpg",
   "img_b": "images/sys/omnigen2-A/4c2f33c2.jpg",
   "spec": {
    "overlay": "images/spec/4c2f33c2_overlay.jpg",
    "reference": "images/spec/4c2f33c2_ref.jpg",
    "instruction": "Replace the two full-height red curtain panels flanking the bedroom windows with warm woven natural cane, preserving their folds, dimensions, position, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00272",
   "task_uid": "d17cc46e",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/d17cc46e.jpg",
   "img_b": "images/sys/omnigen2-B/d17cc46e.jpg",
   "spec": {
    "overlay": "images/spec/d17cc46e_overlay.jpg",
    "reference": "images/spec/d17cc46e_ref.jpg",
    "instruction": "Replace the large curved reception desk front on the right with warm terracotta ceramic tiles matching the reference, keeping its shape, countertop, and the rest of the lounge unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00226",
   "task_uid": "3301d7c3",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/3301d7c3.jpg",
   "img_b": "images/sys/nanobanana2lite-A/3301d7c3.jpg",
   "spec": {
    "overlay": "images/spec/3301d7c3_overlay.jpg",
    "reference": "images/spec/3301d7c3_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with warm beige travertine stone, preserving its shape, position, decorative objects, and everything else.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00007",
   "task_uid": "32f3532d",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/32f3532d.jpg",
   "img_b": "images/sys/nanobanana2lite-A/32f3532d.jpg",
   "spec": {
    "overlay": "images/spec/32f3532d_overlay.jpg",
    "reference": "images/spec/32f3532d_ref.jpg",
    "instruction": "Replace the red upholstered seats and curved backs of the four chairs around the reception table with woven natural cane, preserving their exact shape, frames, positions, lighting, and the rest of the room.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00292",
   "task_uid": "4cff9d4c",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/4cff9d4c.jpg",
   "img_b": "images/sys/gpt-image-2-B/4cff9d4c.jpg",
   "spec": {
    "overlay": "images/spec/4cff9d4c_overlay.jpg",
    "reference": "images/spec/4cff9d4c_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with warm beige travertine stone, keeping its shape, reflections, and everything else unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00036",
   "task_uid": "e275343c",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/e275343c.jpg",
   "img_b": "images/sys/qwen-image-edit/e275343c.jpg",
   "spec": {
    "overlay": "images/spec/e275343c_overlay.jpg",
    "reference": "images/spec/e275343c_ref.jpg",
    "instruction": "Replace the large upholstered backrest behind the left-side lobby banquette with woven natural cane, preserving its rectangular shape and keeping everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00053",
   "task_uid": "9839f199",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/9839f199.jpg",
   "img_b": "images/sys/bagel-A/9839f199.jpg",
   "spec": {
    "overlay": "images/spec/9839f199_overlay.jpg",
    "reference": "images/spec/9839f199_ref.jpg",
    "instruction": "Replace the coral feature wall behind the bed with vertical light oak wood planks, keeping the room layout, furnishings, and lighting unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00178",
   "task_uid": "215920b9",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/215920b9.jpg",
   "img_b": "images/sys/flux-kontext/215920b9.jpg",
   "spec": {
    "overlay": "images/spec/215920b9_overlay.jpg",
    "reference": "images/spec/215920b9_ref.jpg",
    "instruction": "Replace the large inset front panel of the dark wood reception desk with warm beige travertine stone, keeping the desk structure and entire bedroom suite unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00110",
   "task_uid": "2cfe57a2",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/2cfe57a2.jpg",
   "img_b": "images/sys/instruct-pix2pix/2cfe57a2.jpg",
   "spec": {
    "overlay": "images/spec/2cfe57a2_overlay.jpg",
    "reference": "images/spec/2cfe57a2_ref.jpg",
    "instruction": "Replace the full-height curtains flanking the central living-room window with woven natural cane, preserving their folds, shape, position, and all other scene elements.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00391",
   "task_uid": "8122d145",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/8122d145.jpg",
   "img_b": "images/sys/nanobanana2lite-C/8122d145.jpg",
   "spec": {
    "overlay": "images/spec/8122d145_overlay.jpg",
    "reference": "images/spec/8122d145_ref.jpg",
    "instruction": "Replace the large red reception desk front in the center foreground with light oak wood planks, keeping its shape, countertop, and the surrounding restaurant unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00215",
   "task_uid": "123276c4",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/123276c4.jpg",
   "img_b": "images/sys/gpt-image-2-A/123276c4.jpg",
   "spec": {
    "overlay": "images/spec/123276c4_overlay.jpg",
    "reference": "images/spec/123276c4_ref.jpg",
    "instruction": "Replace the front and right-side panels of the large central kitchen island with brushed brass, preserving its white countertop, geometry, lighting, and everything else.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00096",
   "task_uid": "58763dac",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/58763dac.jpg",
   "img_b": "images/sys/omnigen2-A/58763dac.jpg",
   "spec": {
    "overlay": "images/spec/58763dac_overlay.jpg",
    "reference": "images/spec/58763dac_ref.jpg",
    "instruction": "Replace the coral-red curved sofa and two matching lounge chairs around the central dining table with cognac tan leather, keeping everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00345",
   "task_uid": "95dd558c",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/95dd558c.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/95dd558c.jpg",
   "spec": {
    "overlay": "images/spec/95dd558c_overlay.jpg",
    "reference": "images/spec/95dd558c_ref.jpg",
    "instruction": "Replace the large red fireplace surround on the left side of the bedroom with warm terracotta ceramic tiles, keeping its structure, firebox, décor, and the rest of the room unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00286",
   "task_uid": "91e5aa52",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/91e5aa52.jpg",
   "img_b": "images/sys/gpt-image-2-B/91e5aa52.jpg",
   "spec": {
    "overlay": "images/spec/91e5aa52_overlay.jpg",
    "reference": "images/spec/91e5aa52_ref.jpg",
    "instruction": "Replace the coral upholstery on the large foreground sectional sofa with charcoal grey boucle fabric, preserving its shape, cushions, pillows, and the rest of the tropical living room.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00253",
   "task_uid": "eefb433c",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/eefb433c.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/eefb433c.jpg",
   "spec": {
    "overlay": "images/spec/eefb433c_overlay.jpg",
    "reference": "images/spec/eefb433c_ref.jpg",
    "instruction": "Replace the four full-height arched curtains along the restaurant wall with woven natural cane, preserving their folds, positions, and everything else unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00281",
   "task_uid": "5f2a52cd",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/5f2a52cd.jpg",
   "img_b": "images/sys/omnigen2-B/5f2a52cd.jpg",
   "spec": {
    "overlay": "images/spec/5f2a52cd_overlay.jpg",
    "reference": "images/spec/5f2a52cd_ref.jpg",
    "instruction": "Replace the tall vertically paneled headboard fabric behind the daybed with deep emerald green velvet, keeping its structure, lighting, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00042",
   "task_uid": "341b167b",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/341b167b.jpg",
   "img_b": "images/sys/bagel-A/341b167b.jpg",
   "spec": {
    "overlay": "images/spec/341b167b_overlay.jpg",
    "reference": "images/spec/341b167b_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back wall with cognac tan leather, preserving their folds, dimensions, position, and the rest of the warm hotel lounge unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00395",
   "task_uid": "610b3de4",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/610b3de4.jpg",
   "img_b": "images/sys/nanobanana2lite-C/610b3de4.jpg",
   "spec": {
    "overlay": "images/spec/610b3de4_overlay.jpg",
    "reference": "images/spec/610b3de4_ref.jpg",
    "instruction": "Replace the upholstery of the large foreground sofa with navy blue suede, preserving its shape, seams, wooden base, position, and the rest of the tropical bedroom suite unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00287",
   "task_uid": "0532c3bd",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/0532c3bd.jpg",
   "img_b": "images/sys/gpt-image-2-B/0532c3bd.jpg",
   "spec": {
    "overlay": "images/spec/0532c3bd_overlay.jpg",
    "reference": "images/spec/0532c3bd_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back and right-side windows with deep emerald green velvet, keeping their shape, position, and the rest of the warm contemporary lobby unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00392",
   "task_uid": "567826de",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/567826de.jpg",
   "img_b": "images/sys/nanobanana2lite-C/567826de.jpg",
   "spec": {
    "overlay": "images/spec/567826de_overlay.jpg",
    "reference": "images/spec/567826de_ref.jpg",
    "instruction": "Replace the upholstery on both sofas in the reception area with navy blue suede, preserving their shapes, seams, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00105",
   "task_uid": "d40a3dc5",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/d40a3dc5.jpg",
   "img_b": "images/sys/instruct-pix2pix/d40a3dc5.jpg",
   "spec": {
    "overlay": "images/spec/d40a3dc5_overlay.jpg",
    "reference": "images/spec/d40a3dc5_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with warm terracotta ceramic tiles, keeping the architecture, furniture, plants, lighting, and all other surfaces unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00340",
   "task_uid": "5be378c0",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/5be378c0.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/5be378c0.jpg",
   "spec": {
    "overlay": "images/spec/5be378c0_overlay.jpg",
    "reference": "images/spec/5be378c0_ref.jpg",
    "instruction": "Replace the coral upholstery on all four dark-wood dining chairs with woven natural cane, preserving their shapes, positions, frames, and the rest of the luxury lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00398",
   "task_uid": "337052af",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/337052af.jpg",
   "img_b": "images/sys/omnigen2-C/337052af.jpg",
   "spec": {
    "overlay": "images/spec/337052af_overlay.jpg",
    "reference": "images/spec/337052af_ref.jpg",
    "instruction": "Replace the large front panels of the reception desk on the right with warm brushed brass, keeping its structure and the surrounding restaurant unchanged.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00308",
   "task_uid": "9469c767",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/9469c767.jpg",
   "img_b": "images/sys/nanobanana2lite-B/9469c767.jpg",
   "spec": {
    "overlay": "images/spec/9469c767_overlay.jpg",
    "reference": "images/spec/9469c767_ref.jpg",
    "instruction": "Replace the curved reception desk front with warm orange terracotta ceramic tiles, preserving the desk shape, countertop, base trim, and surrounding spa reception unchanged.",
    "material": "ceramic",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00205",
   "task_uid": "b9152c15",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/b9152c15.jpg",
   "img_b": "images/sys/gpt-image-2-A/b9152c15.jpg",
   "spec": {
    "overlay": "images/spec/b9152c15_overlay.jpg",
    "reference": "images/spec/b9152c15_ref.jpg",
    "instruction": "Replace the large central kitchen island countertop with polished green veined marble, preserving its shape, thickness, position, and the rest of the luxury lounge unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00409",
   "task_uid": "2263f231",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/2263f231.jpg",
   "img_b": "images/sys/sd35-inpaint/2263f231.jpg",
   "spec": {
    "overlay": "images/spec/2263f231_overlay.jpg",
    "reference": "images/spec/2263f231_ref.jpg",
    "instruction": "Replace the five coral upholstered panels behind the lobby bench with charcoal grey boucle fabric, keeping their shape, seams, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00169",
   "task_uid": "84d095fb",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/84d095fb.jpg",
   "img_b": "images/sys/flux-kontext/84d095fb.jpg",
   "spec": {
    "overlay": "images/spec/84d095fb_overlay.jpg",
    "reference": "images/spec/84d095fb_ref.jpg",
    "instruction": "Replace the full-height coral curtains along the lobby windows with deep emerald green velvet, keeping their folds, translucency, shape, position, and everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00482",
   "task_uid": "12637e60",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/12637e60.jpg",
   "img_b": "images/sys/paste/12637e60.jpg",
   "spec": {
    "overlay": "images/spec/12637e60_overlay.jpg",
    "reference": "images/spec/12637e60_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby with warm terracotta ceramic tiles, preserving its shape, base, position, and the rest of the scene.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00082",
   "task_uid": "55a0c057",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/55a0c057.jpg",
   "img_b": "images/sys/omnigen2-A/55a0c057.jpg",
   "spec": {
    "overlay": "images/spec/55a0c057_overlay.jpg",
    "reference": "images/spec/55a0c057_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with warm travertine stone, keeping its shape, position, bowl, and everything else unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00329",
   "task_uid": "8ee6c7d9",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/8ee6c7d9.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/8ee6c7d9.jpg",
   "spec": {
    "overlay": "images/spec/8ee6c7d9_overlay.jpg",
    "reference": "images/spec/8ee6c7d9_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby with warm terracotta ceramic tiles, keeping its shape, rim, base, and the rest of the scene unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00035",
   "task_uid": "09f61c3f",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/09f61c3f.jpg",
   "img_b": "images/sys/qwen-image-edit/09f61c3f.jpg",
   "spec": {
    "overlay": "images/spec/09f61c3f_overlay.jpg",
    "reference": "images/spec/09f61c3f_ref.jpg",
    "instruction": "Replace the large red-accent feature wall behind the bed with warm beige travertine stone, preserving its dimensions and keeping all furniture, textiles, lighting, and surrounding surfaces unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00263",
   "task_uid": "2f46bf0d",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/2f46bf0d.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/2f46bf0d.jpg",
   "spec": {
    "overlay": "images/spec/2f46bf0d_overlay.jpg",
    "reference": "images/spec/2f46bf0d_ref.jpg",
    "instruction": "Replace the red upholstered seats and backrests of the four dining chairs around the wooden table with charcoal grey boucle fabric, keeping their wooden frames and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00315",
   "task_uid": "a915347c",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/a915347c.jpg",
   "img_b": "images/sys/nanobanana2lite-B/a915347c.jpg",
   "spec": {
    "overlay": "images/spec/a915347c_overlay.jpg",
    "reference": "images/spec/a915347c_ref.jpg",
    "instruction": "Replace the large red fireplace surround on the right side of the bedroom with warm brushed brass panels, keeping its structure, fireplace opening, and everything else unchanged.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00152",
   "task_uid": "e1daf93a",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/e1daf93a.jpg",
   "img_b": "images/sys/qwen-image-edit/e1daf93a.jpg",
   "spec": {
    "overlay": "images/spec/e1daf93a_overlay.jpg",
    "reference": "images/spec/e1daf93a_ref.jpg",
    "instruction": "Replace the upholstery on all four red dining chairs surrounding the round coffee table with deep emerald green velvet, keeping their shapes, legs, positions, and the rest of the lobby unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00333",
   "task_uid": "d8ebf562",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/d8ebf562.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/d8ebf562.jpg",
   "spec": {
    "overlay": "images/spec/d8ebf562_overlay.jpg",
    "reference": "images/spec/d8ebf562_ref.jpg",
    "instruction": "Replace the large feature wall behind the television with dark green veined marble, keeping the room, furnishings, lighting, and wall geometry unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00430",
   "task_uid": "740473f3",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/740473f3.jpg",
   "img_b": "images/sys/gpt-image-2-B/740473f3.jpg",
   "spec": {
    "overlay": "images/spec/740473f3_overlay.jpg",
    "reference": "images/spec/740473f3_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden-framed lobby chairs with charcoal grey boucle fabric, preserving their shapes, positions, wooden frames, and the rest of the tropical office lobby unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00254",
   "task_uid": "ef18ee3a",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/ef18ee3a.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/ef18ee3a.jpg",
   "spec": {
    "overlay": "images/spec/ef18ee3a_overlay.jpg",
    "reference": "images/spec/ef18ee3a_ref.jpg",
    "instruction": "Replace the large fireplace surround and hearth on the right with warm terracotta ceramic tiles, preserving its structure, firebox, decor, and the rest of the bedroom unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00335",
   "task_uid": "b31fb4e4",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/b31fb4e4.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/b31fb4e4.jpg",
   "spec": {
    "overlay": "images/spec/b31fb4e4_overlay.jpg",
    "reference": "images/spec/b31fb4e4_ref.jpg",
    "instruction": "Replace the large reception desk front and right side in the foreground with light oak wood planks, preserving its decorative paneling, countertop, shape, and all surrounding elements.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00222",
   "task_uid": "ba263217",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/ba263217.jpg",
   "img_b": "images/sys/nanobanana2lite-A/ba263217.jpg",
   "spec": {
    "overlay": "images/spec/ba263217_overlay.jpg",
    "reference": "images/spec/ba263217_ref.jpg",
    "instruction": "Replace the large red fireplace surround and raised hearth on the right side of the bedroom with warm travertine stone, preserving its shape and keeping everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00366",
   "task_uid": "c4c53b49",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/c4c53b49.jpg",
   "img_b": "images/sys/bagel-C/c4c53b49.jpg",
   "spec": {
    "overlay": "images/spec/c4c53b49_overlay.jpg",
    "reference": "images/spec/c4c53b49_ref.jpg",
    "instruction": "Replace the round coffee table top between the two armchairs with warm terracotta ceramic tiles, preserving its shape, brass base, and the rest of the bedroom unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00380",
   "task_uid": "e6b7f364",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/e6b7f364.jpg",
   "img_b": "images/sys/gpt-image-2-C/e6b7f364.jpg",
   "spec": {
    "overlay": "images/spec/e6b7f364_overlay.jpg",
    "reference": "images/spec/e6b7f364_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear wall with navy blue suede, preserving their folds and keeping all furniture, plants, lighting, and decor unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00203",
   "task_uid": "990e8088",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/990e8088.jpg",
   "img_b": "images/sys/gpt-image-2-A/990e8088.jpg",
   "spec": {
    "overlay": "images/spec/990e8088_overlay.jpg",
    "reference": "images/spec/990e8088_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the spa reception with warm travertine stone, keeping its shape, position, brass base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00408",
   "task_uid": "752fa14b",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/752fa14b.jpg",
   "img_b": "images/sys/sd35-inpaint/752fa14b.jpg",
   "spec": {
    "overlay": "images/spec/752fa14b_overlay.jpg",
    "reference": "images/spec/752fa14b_ref.jpg",
    "instruction": "Replace the large recessed feature wall behind the reception counter with warm terracotta ceramic tiles, preserving the wall geometry and keeping the counter, furniture, floor, lighting, and decor unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00320",
   "task_uid": "5ceefd7a",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/5ceefd7a.jpg",
   "img_b": "images/sys/bagel-B/5ceefd7a.jpg",
   "spec": {
    "overlay": "images/spec/5ceefd7a_overlay.jpg",
    "reference": "images/spec/5ceefd7a_ref.jpg",
    "instruction": "Replace the upholstery on both foreground armchairs with navy blue suede, preserving their shapes, positions, seams, and all other room details.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00213",
   "task_uid": "79c970f7",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/79c970f7.jpg",
   "img_b": "images/sys/gpt-image-2-A/79c970f7.jpg",
   "spec": {
    "overlay": "images/spec/79c970f7_overlay.jpg",
    "reference": "images/spec/79c970f7_ref.jpg",
    "instruction": "Replace the large rectangular fireplace surround on the center wall with light oak wood planks, preserving the fireplace opening and keeping everything else unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00066",
   "task_uid": "f0a432c0",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/f0a432c0.jpg",
   "img_b": "images/sys/flux-kontext/f0a432c0.jpg",
   "spec": {
    "overlay": "images/spec/f0a432c0_overlay.jpg",
    "reference": "images/spec/f0a432c0_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with warm terracotta ceramic tiles, keeping its shape, wooden base, and the rest of the scene unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00182",
   "task_uid": "5de9b06e",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/5de9b06e.jpg",
   "img_b": "images/sys/omnigen2-A/5de9b06e.jpg",
   "spec": {
    "overlay": "images/spec/5de9b06e_overlay.jpg",
    "reference": "images/spec/5de9b06e_ref.jpg",
    "instruction": "Replace the large rectangular fireplace surround on the center wall with warm brushed brass panels, preserving the fireplace opening, panel layout, and everything else unchanged.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00030",
   "task_uid": "4774e19c",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/4774e19c.jpg",
   "img_b": "images/sys/qwen-image-edit/4774e19c.jpg",
   "spec": {
    "overlay": "images/spec/4774e19c_overlay.jpg",
    "reference": "images/spec/4774e19c_ref.jpg",
    "instruction": "Replace the upholstery on both foreground armchairs with cognac tan leather matching the reference, keeping their shapes, positions, black bases, and the rest of the bedroom unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00442",
   "task_uid": "d87027e6",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/d87027e6.jpg",
   "img_b": "images/sys/paint-by-example/d87027e6.jpg",
   "spec": {
    "overlay": "images/spec/d87027e6_overlay.jpg",
    "reference": "images/spec/d87027e6_ref.jpg",
    "instruction": "Replace the large rounded reception counter in the foreground with light oak wood planks, keeping its shape, position, décor, and the rest of the room unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00452",
   "task_uid": "edc355df",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/edc355df.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/edc355df.jpg",
   "spec": {
    "overlay": "images/spec/edc355df_overlay.jpg",
    "reference": "images/spec/edc355df_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with warm terracotta ceramic tiles, preserving its shape, trim, countertop, and everything else unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00402",
   "task_uid": "214e0e4f",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/214e0e4f.jpg",
   "img_b": "images/sys/omnigen2-C/214e0e4f.jpg",
   "spec": {
    "overlay": "images/spec/214e0e4f_overlay.jpg",
    "reference": "images/spec/214e0e4f_ref.jpg",
    "instruction": "Replace the large central dark-wood island countertop with warm beige travertine stone, preserving its shape, position, and everything else in the lobby.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00193",
   "task_uid": "6d1accc7",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/6d1accc7.jpg",
   "img_b": "images/sys/omnigen2-A/6d1accc7.jpg",
   "spec": {
    "overlay": "images/spec/6d1accc7_overlay.jpg",
    "reference": "images/spec/6d1accc7_ref.jpg",
    "instruction": "Replace the upholstery on all six dark-framed dining chairs with deep emerald green velvet, preserving their shapes, positions, and the rest of the Japandi restaurant interior unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00039",
   "task_uid": "0d629f55",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/0d629f55.jpg",
   "img_b": "images/sys/qwen-image-edit/0d629f55.jpg",
   "spec": {
    "overlay": "images/spec/0d629f55_overlay.jpg",
    "reference": "images/spec/0d629f55_ref.jpg",
    "instruction": "Replace the large central island counter and its paneled base with dark green veined marble, preserving its shape, fixtures, and the surrounding office lobby.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00249",
   "task_uid": "d399462b",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/d399462b.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/d399462b.jpg",
   "spec": {
    "overlay": "images/spec/d399462b_overlay.jpg",
    "reference": "images/spec/d399462b_ref.jpg",
    "instruction": "Replace the upholstery on all four lounge chairs surrounding the coffee table with deep emerald green velvet, preserving their shapes and positions and keeping everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00201",
   "task_uid": "e94863dc",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/e94863dc.jpg",
   "img_b": "images/sys/gpt-image-2-A/e94863dc.jpg",
   "spec": {
    "overlay": "images/spec/e94863dc_overlay.jpg",
    "reference": "images/spec/e94863dc_ref.jpg",
    "instruction": "Replace the large vertically paneled upholstered wall behind the lobby bench with navy blue suede, keeping its shape, seams, lighting, and everything else unchanged.",
    "material": "fabric",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00093",
   "task_uid": "d5a20b91",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/d5a20b91.jpg",
   "img_b": "images/sys/omnigen2-A/d5a20b91.jpg",
   "spec": {
    "overlay": "images/spec/d5a20b91_overlay.jpg",
    "reference": "images/spec/d5a20b91_ref.jpg",
    "instruction": "Replace the round central coffee table top with warm terracotta ceramic tiles and light grout, keeping its shape, position, base, rim, and the rest of the spa reception unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00251",
   "task_uid": "7a7970a1",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/7a7970a1.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/7a7970a1.jpg",
   "spec": {
    "overlay": "images/spec/7a7970a1_overlay.jpg",
    "reference": "images/spec/7a7970a1_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island at the left foreground with light oak wood planks, preserving its shape, position, countertop objects, and the rest of the restaurant.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00494",
   "task_uid": "186e3fbf",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/186e3fbf.jpg",
   "img_b": "images/sys/identity/186e3fbf.jpg",
   "spec": {
    "overlay": "images/spec/186e3fbf_overlay.jpg",
    "reference": "images/spec/186e3fbf_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the round coffee table with cognac tan leather, preserving their shapes, positions, seams, and the rest of the tropical living room.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00158",
   "task_uid": "a9132291",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/a9132291.jpg",
   "img_b": "images/sys/qwen-image-edit/a9132291.jpg",
   "spec": {
    "overlay": "images/spec/a9132291_overlay.jpg",
    "reference": "images/spec/a9132291_ref.jpg",
    "instruction": "Replace the central kitchen island countertop and waterfall side panels with warm travertine stone, keeping its shape, position, and the rest of the room unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00314",
   "task_uid": "64158cfd",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/64158cfd.jpg",
   "img_b": "images/sys/nanobanana2lite-B/64158cfd.jpg",
   "spec": {
    "overlay": "images/spec/64158cfd_overlay.jpg",
    "reference": "images/spec/64158cfd_ref.jpg",
    "instruction": "Replace the upholstery on all six dark-wood dining chairs with charcoal-grey boucle matching the coarse looped reference texture, keeping the chair frames and entire room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00239",
   "task_uid": "0604b05a",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/0604b05a.jpg",
   "img_b": "images/sys/nanobanana2lite-A/0604b05a.jpg",
   "spec": {
    "overlay": "images/spec/0604b05a_overlay.jpg",
    "reference": "images/spec/0604b05a_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with warm beige travertine stone, keeping its dimensions and everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00419",
   "task_uid": "dfdd2081",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/dfdd2081.jpg",
   "img_b": "images/sys/sd35-inpaint/dfdd2081.jpg",
   "spec": {
    "overlay": "images/spec/dfdd2081_overlay.jpg",
    "reference": "images/spec/dfdd2081_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs around the round wooden table with cognac tan leather, keeping their shape, position, wooden legs, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00470",
   "task_uid": "bfeac89b",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/bfeac89b.jpg",
   "img_b": "images/sys/identity/bfeac89b.jpg",
   "spec": {
    "overlay": "images/spec/bfeac89b_overlay.jpg",
    "reference": "images/spec/bfeac89b_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround and projecting hearth on the right side of the bedroom with dark green veined marble, keeping everything else unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00121",
   "task_uid": "b9692b1e",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/b9692b1e.jpg",
   "img_b": "images/sys/instruct-pix2pix/b9692b1e.jpg",
   "spec": {
    "overlay": "images/spec/b9692b1e_overlay.jpg",
    "reference": "images/spec/b9692b1e_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the tropical hotel lounge with warm travertine stone, keeping its shape, position, base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00360",
   "task_uid": "57308537",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/57308537.jpg",
   "img_b": "images/sys/flux-kontext-ref/57308537.jpg",
   "spec": {
    "overlay": "images/spec/57308537_overlay.jpg",
    "reference": "images/spec/57308537_ref.jpg",
    "instruction": "Replace the full-height curtains across the back wall with cognac tan leather, preserving their folds, dimensions, and position while keeping the rest of the tropical hotel lounge unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00172",
   "task_uid": "426d53c0",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/426d53c0.jpg",
   "img_b": "images/sys/flux-kontext/426d53c0.jpg",
   "spec": {
    "overlay": "images/spec/426d53c0_overlay.jpg",
    "reference": "images/spec/426d53c0_ref.jpg",
    "instruction": "Replace the curved reception desk front at the center of the tropical spa lobby with light oak wood planks, keeping its shape, position, countertop, and the rest of the scene unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00049",
   "task_uid": "99a268d2",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/99a268d2.jpg",
   "img_b": "images/sys/bagel-A/99a268d2.jpg",
   "spec": {
    "overlay": "images/spec/99a268d2_overlay.jpg",
    "reference": "images/spec/99a268d2_ref.jpg",
    "instruction": "Replace the front and right-side panels of the central kitchen island with warm brushed brass, preserving the white countertop and everything else unchanged.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00184",
   "task_uid": "c64c1943",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/c64c1943.jpg",
   "img_b": "images/sys/omnigen2-A/c64c1943.jpg",
   "spec": {
    "overlay": "images/spec/c64c1943_overlay.jpg",
    "reference": "images/spec/c64c1943_ref.jpg",
    "instruction": "Replace the large upholstered headboard behind the bed on the right with cognac tan leather, preserving its shape, lighting, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00343",
   "task_uid": "62474582",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/62474582.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/62474582.jpg",
   "spec": {
    "overlay": "images/spec/62474582_overlay.jpg",
    "reference": "images/spec/62474582_ref.jpg",
    "instruction": "Replace the central fireplace surround and hearth with light oak wood planks matching the reference, keeping its structure and the rest of the warm living room unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00197",
   "task_uid": "ba782f7d",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/ba782f7d.jpg",
   "img_b": "images/sys/omnigen2-A/ba782f7d.jpg",
   "spec": {
    "overlay": "images/spec/ba782f7d_overlay.jpg",
    "reference": "images/spec/ba782f7d_ref.jpg",
    "instruction": "Replace the upholstery of the large curved foreground sofa with charcoal grey boucle fabric, preserving its shape, seams, cushions, position, and the rest of the lounge unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00483",
   "task_uid": "1ea27a65",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/1ea27a65.jpg",
   "img_b": "images/sys/paste/1ea27a65.jpg",
   "spec": {
    "overlay": "images/spec/1ea27a65_overlay.jpg",
    "reference": "images/spec/1ea27a65_ref.jpg",
    "instruction": "Replace the large central fireplace surround with warm travertine stone matching the reference, preserving its shape, fireplace opening, lighting, and the rest of the lounge unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00065",
   "task_uid": "8a6a9ac0",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/8a6a9ac0.jpg",
   "img_b": "images/sys/flux-kontext/8a6a9ac0.jpg",
   "spec": {
    "overlay": "images/spec/8a6a9ac0_overlay.jpg",
    "reference": "images/spec/8a6a9ac0_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs around the round wooden table with charcoal grey boucle fabric, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00465",
   "task_uid": "401236bb",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/401236bb.jpg",
   "img_b": "images/sys/identity/401236bb.jpg",
   "spec": {
    "overlay": "images/spec/401236bb_overlay.jpg",
    "reference": "images/spec/401236bb_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island in the foreground with warm terracotta ceramic tiles, preserving its shape and keeping everything else unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00301",
   "task_uid": "dad51682",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/dad51682.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/dad51682.jpg",
   "spec": {
    "overlay": "images/spec/dad51682_overlay.jpg",
    "reference": "images/spec/dad51682_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the hotel lounge with warm travertine stone, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00270",
   "task_uid": "57f571df",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/57f571df.jpg",
   "img_b": "images/sys/omnigen2-B/57f571df.jpg",
   "spec": {
    "overlay": "images/spec/57f571df_overlay.jpg",
    "reference": "images/spec/57f571df_ref.jpg",
    "instruction": "Replace the large feature wall behind the dining tables with warm brushed brass panels, keeping the furniture, floor, ceiling, plants, and lighting unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00018",
   "task_uid": "78d2c5a1",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/78d2c5a1.jpg",
   "img_b": "images/sys/nanobanana2lite-A/78d2c5a1.jpg",
   "spec": {
    "overlay": "images/spec/78d2c5a1_overlay.jpg",
    "reference": "images/spec/78d2c5a1_ref.jpg",
    "instruction": "Replace the central three-seat sofa upholstery with charcoal grey boucle fabric, preserving its shape, position, seams, and the rest of the Japandi living room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00403",
   "task_uid": "4fc3d214",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/4fc3d214.jpg",
   "img_b": "images/sys/omnigen2-C/4fc3d214.jpg",
   "spec": {
    "overlay": "images/spec/4fc3d214_overlay.jpg",
    "reference": "images/spec/4fc3d214_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island counter in the foreground with dark green veined marble, keeping its geometry and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00371",
   "task_uid": "2ad81b73",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/2ad81b73.jpg",
   "img_b": "images/sys/bagel-C/2ad81b73.jpg",
   "spec": {
    "overlay": "images/spec/2ad81b73_overlay.jpg",
    "reference": "images/spec/2ad81b73_ref.jpg",
    "instruction": "Replace the large rectangular front panel of the central reception desk with golden brushed brass panels, keeping its shape, dark countertop, and the rest of the tropical lobby unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00221",
   "task_uid": "384b9286",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/384b9286.jpg",
   "img_b": "images/sys/nanobanana2lite-A/384b9286.jpg",
   "spec": {
    "overlay": "images/spec/384b9286_overlay.jpg",
    "reference": "images/spec/384b9286_ref.jpg",
    "instruction": "Replace the large central kitchen island’s countertop and exterior panels with dark green veined marble, preserving its shape, sink, faucet, base trim, and the surrounding room unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00034",
   "task_uid": "c162738d",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/c162738d.jpg",
   "img_b": "images/sys/qwen-image-edit/c162738d.jpg",
   "spec": {
    "overlay": "images/spec/c162738d_overlay.jpg",
    "reference": "images/spec/c162738d_ref.jpg",
    "instruction": "Replace the upholstery on all three coral-red, wood-framed armchairs with charcoal-grey bouclé fabric, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00426",
   "task_uid": "6e639294",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/6e639294.jpg",
   "img_b": "images/sys/gpt-image-2-B/6e639294.jpg",
   "spec": {
    "overlay": "images/spec/6e639294_overlay.jpg",
    "reference": "images/spec/6e639294_ref.jpg",
    "instruction": "Replace the large central feature wall behind the television with light oak wood planks, keeping the television, furniture, decor, lighting, and surrounding architecture unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00300",
   "task_uid": "a4cf5bdb",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/a4cf5bdb.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/a4cf5bdb.jpg",
   "spec": {
    "overlay": "images/spec/a4cf5bdb_overlay.jpg",
    "reference": "images/spec/a4cf5bdb_ref.jpg",
    "instruction": "Replace the coral-red sofa and two matching armchairs in the foreground with warm woven natural cane, preserving their shapes, positions, and the rest of the lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00015",
   "task_uid": "770d181e",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/770d181e.jpg",
   "img_b": "images/sys/nanobanana2lite-A/770d181e.jpg",
   "spec": {
    "overlay": "images/spec/770d181e_overlay.jpg",
    "reference": "images/spec/770d181e_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround centered on the back wall with warm terracotta ceramic tile, keeping its shape, position, and the rest of the tropical lobby unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00227",
   "task_uid": "dd738e20",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/dd738e20.jpg",
   "img_b": "images/sys/nanobanana2lite-A/dd738e20.jpg",
   "spec": {
    "overlay": "images/spec/dd738e20_overlay.jpg",
    "reference": "images/spec/dd738e20_ref.jpg",
    "instruction": "Replace the reception desk at the left side of the living room with light oak wood planks, keeping its shape, position, and everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00260",
   "task_uid": "b89ede04",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/b89ede04.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/b89ede04.jpg",
   "spec": {
    "overlay": "images/spec/b89ede04_overlay.jpg",
    "reference": "images/spec/b89ede04_ref.jpg",
    "instruction": "Replace the large central fireplace surround and projecting hearth with warm beige travertine stone, preserving its shape and keeping the rest of the living room unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00326",
   "task_uid": "e29241b6",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/e29241b6.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/e29241b6.jpg",
   "spec": {
    "overlay": "images/spec/e29241b6_overlay.jpg",
    "reference": "images/spec/e29241b6_ref.jpg",
    "instruction": "Replace the red upholstered booth sofas surrounding the dining tables with cognac tan leather, preserving their shape, seams, lighting, and all other scene elements.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00130",
   "task_uid": "fddb1eef",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/fddb1eef.jpg",
   "img_b": "images/sys/instruct-pix2pix/fddb1eef.jpg",
   "spec": {
    "overlay": "images/spec/fddb1eef_overlay.jpg",
    "reference": "images/spec/fddb1eef_ref.jpg",
    "instruction": "Replace the tall red central fireplace surround with light oak wood planks matching the reference, keeping the firebox, hearth shape, and everything else unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00028",
   "task_uid": "6ea4d335",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/6ea4d335.jpg",
   "img_b": "images/sys/qwen-image-edit/6ea4d335.jpg",
   "spec": {
    "overlay": "images/spec/6ea4d335_overlay.jpg",
    "reference": "images/spec/6ea4d335_ref.jpg",
    "instruction": "Replace the upholstery on the central sofa and two matching armchairs with warm woven natural cane, preserving their shapes, positions, wooden legs, and the rest of the tropical lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00275",
   "task_uid": "8284c0c6",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/8284c0c6.jpg",
   "img_b": "images/sys/omnigen2-B/8284c0c6.jpg",
   "spec": {
    "overlay": "images/spec/8284c0c6_overlay.jpg",
    "reference": "images/spec/8284c0c6_ref.jpg",
    "instruction": "Replace the full-height pleated curtains along the right wall with cognac tan leather, preserving their folds, dimensions, lighting, and the rest of the lobby unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00498",
   "task_uid": "0bd74692",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/0bd74692.jpg",
   "img_b": "images/sys/identity/0bd74692.jpg",
   "spec": {
    "overlay": "images/spec/0bd74692_overlay.jpg",
    "reference": "images/spec/0bd74692_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground seating area with dark green veined marble, keeping its shape, position, edge, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00255",
   "task_uid": "47e55166",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/47e55166.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/47e55166.jpg",
   "spec": {
    "overlay": "images/spec/47e55166_overlay.jpg",
    "reference": "images/spec/47e55166_ref.jpg",
    "instruction": "Replace the full-height pleated curtains along the left bedroom wall with cognac tan leather matching the reference, keeping their shape, folds, position, and everything else unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00198",
   "task_uid": "39570218",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/39570218.jpg",
   "img_b": "images/sys/omnigen2-A/39570218.jpg",
   "spec": {
    "overlay": "images/spec/39570218_overlay.jpg",
    "reference": "images/spec/39570218_ref.jpg",
    "instruction": "Replace the upholstery on all three rounded armchairs around the coffee table with navy blue suede, keeping their shapes, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00004",
   "task_uid": "ee2060e1",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/ee2060e1.jpg",
   "img_b": "images/sys/nanobanana2lite-A/ee2060e1.jpg",
   "spec": {
    "overlay": "images/spec/ee2060e1_overlay.jpg",
    "reference": "images/spec/ee2060e1_ref.jpg",
    "instruction": "Replace the central fireplace surround and hearth with dark green veined marble, preserving its structure and keeping the tropical spa reception unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00104",
   "task_uid": "2bd7bb51",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/2bd7bb51.jpg",
   "img_b": "images/sys/instruct-pix2pix/2bd7bb51.jpg",
   "spec": {
    "overlay": "images/spec/2bd7bb51_overlay.jpg",
    "reference": "images/spec/2bd7bb51_ref.jpg",
    "instruction": "Replace the upholstery on the four foreground dining armchairs with deep emerald green velvet, preserving their shapes, seams, wooden legs, and the rest of the restaurant unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00377",
   "task_uid": "1396e478",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/1396e478.jpg",
   "img_b": "images/sys/gpt-image-2-C/1396e478.jpg",
   "spec": {
    "overlay": "images/spec/1396e478_overlay.jpg",
    "reference": "images/spec/1396e478_ref.jpg",
    "instruction": "Replace the large feature wall behind the bed with dark green veined marble, preserving its dimensions, lighting, fixtures, and everything else unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00199",
   "task_uid": "85fbbc32",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/85fbbc32.jpg",
   "img_b": "images/sys/omnigen2-A/85fbbc32.jpg",
   "spec": {
    "overlay": "images/spec/85fbbc32_overlay.jpg",
    "reference": "images/spec/85fbbc32_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground seating area with warm travertine stone, keeping its shape, position, wooden base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00364",
   "task_uid": "a856af17",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/a856af17.jpg",
   "img_b": "images/sys/flux-kontext-ref/a856af17.jpg",
   "spec": {
    "overlay": "images/spec/a856af17_overlay.jpg",
    "reference": "images/spec/a856af17_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround on the central wall with warm terracotta ceramic tiles, keeping its dimensions, firebox, and the rest of the lobby unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00114",
   "task_uid": "895cbb29",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/895cbb29.jpg",
   "img_b": "images/sys/instruct-pix2pix/895cbb29.jpg",
   "spec": {
    "overlay": "images/spec/895cbb29_overlay.jpg",
    "reference": "images/spec/895cbb29_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with light oak wood planks, preserving its shape, base, position, and the rest of the scene unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00179",
   "task_uid": "9efa6f46",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/9efa6f46.jpg",
   "img_b": "images/sys/flux-kontext/9efa6f46.jpg",
   "spec": {
    "overlay": "images/spec/9efa6f46_overlay.jpg",
    "reference": "images/spec/9efa6f46_ref.jpg",
    "instruction": "Replace the large rectangular reception counter centered in the foreground with dark green veined marble, keeping its shape, position, and everything else unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00257",
   "task_uid": "bcdea30b",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/bcdea30b.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/bcdea30b.jpg",
   "spec": {
    "overlay": "images/spec/bcdea30b_overlay.jpg",
    "reference": "images/spec/bcdea30b_ref.jpg",
    "instruction": "Replace the upholstery on both coral sofas in the office lobby with charcoal grey boucle fabric, preserving their shapes, positions, seams, and all other scene elements.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00131",
   "task_uid": "2a071721",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/2a071721.jpg",
   "img_b": "images/sys/instruct-pix2pix/2a071721.jpg",
   "spec": {
    "overlay": "images/spec/2a071721_overlay.jpg",
    "reference": "images/spec/2a071721_ref.jpg",
    "instruction": "Replace the tall central fireplace surround and projecting hearth with warm terracotta ceramic tiles, preserving its structure and keeping the rest of the tropical living room unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00296",
   "task_uid": "e42dfe3c",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/e42dfe3c.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/e42dfe3c.jpg",
   "spec": {
    "overlay": "images/spec/e42dfe3c_overlay.jpg",
    "reference": "images/spec/e42dfe3c_ref.jpg",
    "instruction": "Replace the large coral upholstered backrest above the bench on the right with warm woven natural cane, keeping its shape, position, and the rest of the spa reception unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00031",
   "task_uid": "560ae1ab",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/560ae1ab.jpg",
   "img_b": "images/sys/qwen-image-edit/560ae1ab.jpg",
   "spec": {
    "overlay": "images/spec/560ae1ab_overlay.jpg",
    "reference": "images/spec/560ae1ab_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround on the left side of the bedroom with warm orange terracotta ceramic tiles, preserving the fireplace opening, dimensions, and everything else unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00420",
   "task_uid": "09771fc6",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/09771fc6.jpg",
   "img_b": "images/sys/sd35-inpaint/09771fc6.jpg",
   "spec": {
    "overlay": "images/spec/09771fc6_overlay.jpg",
    "reference": "images/spec/09771fc6_ref.jpg",
    "instruction": "Replace the coral-red three-seat sofa upholstery in the foreground with navy blue suede matching the reference, keeping its shape, seams, position, and the rest of the bedroom unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00206",
   "task_uid": "dfb47090",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/dfb47090.jpg",
   "img_b": "images/sys/gpt-image-2-A/dfb47090.jpg",
   "spec": {
    "overlay": "images/spec/dfb47090_overlay.jpg",
    "reference": "images/spec/dfb47090_ref.jpg",
    "instruction": "Replace the large central kitchen island countertop with light oak wood planks, preserving its shape, position, and the rest of the luxury hotel lounge unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00151",
   "task_uid": "7c6e3af0",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/7c6e3af0.jpg",
   "img_b": "images/sys/qwen-image-edit/7c6e3af0.jpg",
   "spec": {
    "overlay": "images/spec/7c6e3af0_overlay.jpg",
    "reference": "images/spec/7c6e3af0_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with warm terracotta ceramic tiles and light grout, keeping its shape, position, base, and the rest of the room unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00318",
   "task_uid": "4beeb5e9",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/4beeb5e9.jpg",
   "img_b": "images/sys/bagel-B/4beeb5e9.jpg",
   "spec": {
    "overlay": "images/spec/4beeb5e9_overlay.jpg",
    "reference": "images/spec/4beeb5e9_ref.jpg",
    "instruction": "Replace the large curved reception counter in the foreground with light oak wood planks, keeping its shape, position, and everything else unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00471",
   "task_uid": "aa8c2286",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/aa8c2286.jpg",
   "img_b": "images/sys/identity/aa8c2286.jpg",
   "spec": {
    "overlay": "images/spec/aa8c2286_overlay.jpg",
    "reference": "images/spec/aa8c2286_ref.jpg",
    "instruction": "Replace the upholstery on both dining chairs beside the round table with deep emerald green velvet, keeping their wooden legs and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00162",
   "task_uid": "e5b2d325",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/e5b2d325.jpg",
   "img_b": "images/sys/flux-kontext/e5b2d325.jpg",
   "spec": {
    "overlay": "images/spec/e5b2d325_overlay.jpg",
    "reference": "images/spec/e5b2d325_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back wall with cognac tan leather matching the reference, preserving their folds and keeping the rest of the lounge unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00051",
   "task_uid": "ebc5f55d",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/ebc5f55d.jpg",
   "img_b": "images/sys/bagel-A/ebc5f55d.jpg",
   "spec": {
    "overlay": "images/spec/ebc5f55d_overlay.jpg",
    "reference": "images/spec/ebc5f55d_ref.jpg",
    "instruction": "Replace the large rectangular headboard panel behind the right-side daybed with charcoal grey boucle fabric, keeping its shape, frame, position, and the rest of the spa reception unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00485",
   "task_uid": "015c6c6d",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/015c6c6d.jpg",
   "img_b": "images/sys/paste/015c6c6d.jpg",
   "spec": {
    "overlay": "images/spec/015c6c6d_overlay.jpg",
    "reference": "images/spec/015c6c6d_ref.jpg",
    "instruction": "Replace the central kitchen island’s countertop and waterfall end with dark green veined marble, preserving its shape, fixtures, cabinetry, and the rest of the room unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00141",
   "task_uid": "564a110d",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/564a110d.jpg",
   "img_b": "images/sys/qwen-image-edit/564a110d.jpg",
   "spec": {
    "overlay": "images/spec/564a110d_overlay.jpg",
    "reference": "images/spec/564a110d_ref.jpg",
    "instruction": "Replace the red upholstered seats and backrests of all three dining chairs around the round table with navy blue suede, keeping everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00020",
   "task_uid": "c241a2c1",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/c241a2c1.jpg",
   "img_b": "images/sys/nanobanana2lite-A/c241a2c1.jpg",
   "spec": {
    "overlay": "images/spec/c241a2c1_overlay.jpg",
    "reference": "images/spec/c241a2c1_ref.jpg",
    "instruction": "Replace the curved feature wall behind the dark wood reception desk with warm terracotta ceramic tiles, keeping the architecture, furnishings, and lighting unchanged.",
    "material": "ceramic",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00282",
   "task_uid": "041e9dad",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/041e9dad.jpg",
   "img_b": "images/sys/omnigen2-B/041e9dad.jpg",
   "spec": {
    "overlay": "images/spec/041e9dad_overlay.jpg",
    "reference": "images/spec/041e9dad_ref.jpg",
    "instruction": "Replace the curved three-seat sofa’s upholstery in the center of the spa reception with navy blue suede, preserving its shape, seams, cushions, and everything else.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00461",
   "task_uid": "8f664b38",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/8f664b38.jpg",
   "img_b": "images/sys/identity/8f664b38.jpg",
   "spec": {
    "overlay": "images/spec/8f664b38_overlay.jpg",
    "reference": "images/spec/8f664b38_ref.jpg",
    "instruction": "Replace the full-height curtains flanking the bedroom window with cognac tan leather, preserving their folds, shape, position, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00457",
   "task_uid": "c09a1e82",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/c09a1e82.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/c09a1e82.jpg",
   "spec": {
    "overlay": "images/spec/c09a1e82_overlay.jpg",
    "reference": "images/spec/c09a1e82_ref.jpg",
    "instruction": "Replace the curved reception desk front in the right foreground with warm brushed brass panels, keeping its shape, dark wood trim, countertop, and the rest of the room unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00037",
   "task_uid": "e439f650",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/e439f650.jpg",
   "img_b": "images/sys/qwen-image-edit/e439f650.jpg",
   "spec": {
    "overlay": "images/spec/e439f650_overlay.jpg",
    "reference": "images/spec/e439f650_ref.jpg",
    "instruction": "Replace the large red fireplace surround on the right side of the bedroom with warm travertine stone, keeping its geometry, firebox, and everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00056",
   "task_uid": "2e6a1038",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/2e6a1038.jpg",
   "img_b": "images/sys/bagel-A/2e6a1038.jpg",
   "spec": {
    "overlay": "images/spec/2e6a1038_overlay.jpg",
    "reference": "images/spec/2e6a1038_ref.jpg",
    "instruction": "Replace the foreground sofa’s coral upholstery with charcoal grey boucle fabric matching the reference, preserving its shape, seams, and position while keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00464",
   "task_uid": "bc0c7bcf",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/bc0c7bcf.jpg",
   "img_b": "images/sys/identity/bc0c7bcf.jpg",
   "spec": {
    "overlay": "images/spec/bc0c7bcf_overlay.jpg",
    "reference": "images/spec/bc0c7bcf_ref.jpg",
    "instruction": "Replace the large kitchen island countertop and waterfall side with warm beige travertine stone, keeping its shape, position, cabinetry, and the rest of the room unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00297",
   "task_uid": "99da279c",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/99da279c.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/99da279c.jpg",
   "spec": {
    "overlay": "images/spec/99da279c_overlay.jpg",
    "reference": "images/spec/99da279c_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby with warm brushed brass, preserving its shape, base, position, and the rest of the scene unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00054",
   "task_uid": "b5dd0bee",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/b5dd0bee.jpg",
   "img_b": "images/sys/bagel-A/b5dd0bee.jpg",
   "spec": {
    "overlay": "images/spec/b5dd0bee_overlay.jpg",
    "reference": "images/spec/b5dd0bee_ref.jpg",
    "instruction": "Replace the large feature wall behind the bed with glossy rust-red terracotta ceramic tiles, keeping the room, furniture, decor, and lighting unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00084",
   "task_uid": "e6e285f1",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/e6e285f1.jpg",
   "img_b": "images/sys/omnigen2-A/e6e285f1.jpg",
   "spec": {
    "overlay": "images/spec/e6e285f1_overlay.jpg",
    "reference": "images/spec/e6e285f1_ref.jpg",
    "instruction": "Replace the large round wooden dining table top in the foreground with warm travertine stone, keeping its shape, position, base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00060",
   "task_uid": "8925d063",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/8925d063.jpg",
   "img_b": "images/sys/bagel-A/8925d063.jpg",
   "spec": {
    "overlay": "images/spec/8925d063_overlay.jpg",
    "reference": "images/spec/8925d063_ref.jpg",
    "instruction": "Replace the floor-to-ceiling paneled fireplace surround on the right side of the bedroom with brushed brass panels, keeping its structure, fireplace opening, and everything else unchanged.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00135",
   "task_uid": "3de88bfb",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/3de88bfb.jpg",
   "img_b": "images/sys/instruct-pix2pix/3de88bfb.jpg",
   "spec": {
    "overlay": "images/spec/3de88bfb_overlay.jpg",
    "reference": "images/spec/3de88bfb_ref.jpg",
    "instruction": "Replace the upholstery on the four dining chairs at the left with navy blue suede, preserving their wooden frames, shape, position, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00166",
   "task_uid": "6b12c0fb",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/6b12c0fb.jpg",
   "img_b": "images/sys/flux-kontext/6b12c0fb.jpg",
   "spec": {
    "overlay": "images/spec/6b12c0fb_overlay.jpg",
    "reference": "images/spec/6b12c0fb_ref.jpg",
    "instruction": "Replace the large red fireplace surround on the left side of the office lobby with dark green veined marble, preserving the fireplace opening and everything else unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00154",
   "task_uid": "e1c08b28",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/e1c08b28.jpg",
   "img_b": "images/sys/qwen-image-edit/e1c08b28.jpg",
   "spec": {
    "overlay": "images/spec/e1c08b28_overlay.jpg",
    "reference": "images/spec/e1c08b28_ref.jpg",
    "instruction": "Replace the coral-red upholstery on all dining chairs with deep emerald green velvet, preserving every chair’s wooden frame, shape, position, and the rest of the tropical restaurant scene.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00434",
   "task_uid": "54b1d3e5",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/54b1d3e5.jpg",
   "img_b": "images/sys/gpt-image-2-B/54b1d3e5.jpg",
   "spec": {
    "overlay": "images/spec/54b1d3e5_overlay.jpg",
    "reference": "images/spec/54b1d3e5_ref.jpg",
    "instruction": "Replace the full-height curtains flanking the bedroom’s glass doors with cognac tan leather, preserving their folds, dimensions, and position while keeping everything else unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00252",
   "task_uid": "3dfdb358",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/3dfdb358.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/3dfdb358.jpg",
   "spec": {
    "overlay": "images/spec/3dfdb358_overlay.jpg",
    "reference": "images/spec/3dfdb358_ref.jpg",
    "instruction": "Replace the large framed front panel of the reception desk with light oak wood planks, preserving its molding, shape, position, and the surrounding hotel lounge unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00496",
   "task_uid": "17ec2ba8",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/17ec2ba8.jpg",
   "img_b": "images/sys/identity/17ec2ba8.jpg",
   "spec": {
    "overlay": "images/spec/17ec2ba8_overlay.jpg",
    "reference": "images/spec/17ec2ba8_ref.jpg",
    "instruction": "Replace the tall coral-colored feature wall behind the reception desk with warm travertine stone, keeping its dimensions and everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00285",
   "task_uid": "4caff79b",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/4caff79b.jpg",
   "img_b": "images/sys/omnigen2-B/4caff79b.jpg",
   "spec": {
    "overlay": "images/spec/4caff79b_overlay.jpg",
    "reference": "images/spec/4caff79b_ref.jpg",
    "instruction": "Replace the round coffee table top between the two armchairs with warm terracotta ceramic tiles, preserving its shape, base, and the rest of the bedroom unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00327",
   "task_uid": "2e92111e",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/2e92111e.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/2e92111e.jpg",
   "spec": {
    "overlay": "images/spec/2e92111e_overlay.jpg",
    "reference": "images/spec/2e92111e_ref.jpg",
    "instruction": "Replace the large central kitchen island countertop with polished dark green veined marble, preserving its shape, perspective, and thickness while keeping everything else unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00454",
   "task_uid": "3a1ecbb8",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/3a1ecbb8.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/3a1ecbb8.jpg",
   "spec": {
    "overlay": "images/spec/3a1ecbb8_overlay.jpg",
    "reference": "images/spec/3a1ecbb8_ref.jpg",
    "instruction": "Replace the red upholstered seats and backrests of all four wooden dining chairs with deep emerald green velvet, preserving their shapes and keeping the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00399",
   "task_uid": "a15dce71",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/a15dce71.jpg",
   "img_b": "images/sys/omnigen2-C/a15dce71.jpg",
   "spec": {
    "overlay": "images/spec/a15dce71_overlay.jpg",
    "reference": "images/spec/a15dce71_ref.jpg",
    "instruction": "Replace the central kitchen island’s red-tinted cabinet panels with warm brushed brass panels, preserving the stone countertop, panel seams, rounded ends, shape, position, and surrounding restaurant interior.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00091",
   "task_uid": "ed3fa68e",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/ed3fa68e.jpg",
   "img_b": "images/sys/omnigen2-A/ed3fa68e.jpg",
   "spec": {
    "overlay": "images/spec/ed3fa68e_overlay.jpg",
    "reference": "images/spec/ed3fa68e_ref.jpg",
    "instruction": "Replace the upholstery on both foreground armchairs with woven natural cane, preserving their shapes, cushions, legs, positions, and the rest of the bedroom unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00489",
   "task_uid": "00c0ae1d",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/00c0ae1d.jpg",
   "img_b": "images/sys/paste/00c0ae1d.jpg",
   "spec": {
    "overlay": "images/spec/00c0ae1d_overlay.jpg",
    "reference": "images/spec/00c0ae1d_ref.jpg",
    "instruction": "Replace the large central fireplace surround in the tropical restaurant with light oak wood planks, keeping its shape, dark opening, and the rest of the scene unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00256",
   "task_uid": "b4cdc624",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/b4cdc624.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/b4cdc624.jpg",
   "spec": {
    "overlay": "images/spec/b4cdc624_overlay.jpg",
    "reference": "images/spec/b4cdc624_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the living room with dark green veined marble, keeping its shape, position, wooden base, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00160",
   "task_uid": "350b7a2f",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/350b7a2f.jpg",
   "img_b": "images/sys/qwen-image-edit/350b7a2f.jpg",
   "spec": {
    "overlay": "images/spec/350b7a2f_overlay.jpg",
    "reference": "images/spec/350b7a2f_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear wall with navy blue suede, preserving their folds, dimensions, and position while keeping the dining room unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00211",
   "task_uid": "f434700f",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/f434700f.jpg",
   "img_b": "images/sys/gpt-image-2-A/f434700f.jpg",
   "spec": {
    "overlay": "images/spec/f434700f_overlay.jpg",
    "reference": "images/spec/f434700f_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of the five dining chairs beside the window with woven natural cane, keeping their wooden frames and everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00029",
   "task_uid": "0f2e7eac",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/0f2e7eac.jpg",
   "img_b": "images/sys/qwen-image-edit/0f2e7eac.jpg",
   "spec": {
    "overlay": "images/spec/0f2e7eac_overlay.jpg",
    "reference": "images/spec/0f2e7eac_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround on the right bedroom wall with light oak wood planks, keeping the firebox and everything else unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00077",
   "task_uid": "48a5fa2f",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/48a5fa2f.jpg",
   "img_b": "images/sys/flux-kontext/48a5fa2f.jpg",
   "spec": {
    "overlay": "images/spec/48a5fa2f_overlay.jpg",
    "reference": "images/spec/48a5fa2f_ref.jpg",
    "instruction": "Replace the upholstery on all four classic wooden armchairs surrounding the coffee table with cognac tan leather, keeping their frames and the rest of the reception unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00378",
   "task_uid": "d6892579",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/d6892579.jpg",
   "img_b": "images/sys/gpt-image-2-C/d6892579.jpg",
   "spec": {
    "overlay": "images/spec/d6892579_overlay.jpg",
    "reference": "images/spec/d6892579_ref.jpg",
    "instruction": "Replace the large coral paneled feature wall behind the seating area with warm beige travertine stone, preserving its molding and keeping everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00435",
   "task_uid": "28cc858c",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/28cc858c.jpg",
   "img_b": "images/sys/gpt-image-2-B/28cc858c.jpg",
   "spec": {
    "overlay": "images/spec/28cc858c_overlay.jpg",
    "reference": "images/spec/28cc858c_ref.jpg",
    "instruction": "Replace the upholstery of the central two-seat sofa with warm woven natural cane, preserving its shape, wooden base, position, and the rest of the bedroom unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00075",
   "task_uid": "ee39306b",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/ee39306b.jpg",
   "img_b": "images/sys/flux-kontext/ee39306b.jpg",
   "spec": {
    "overlay": "images/spec/ee39306b_overlay.jpg",
    "reference": "images/spec/ee39306b_ref.jpg",
    "instruction": "Replace the full-height curtains across the rear lounge windows with cognac tan leather, preserving their folds, dimensions, and position while keeping the rest of the room unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00388",
   "task_uid": "7a2f8eeb",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/7a2f8eeb.jpg",
   "img_b": "images/sys/nanobanana2lite-C/7a2f8eeb.jpg",
   "spec": {
    "overlay": "images/spec/7a2f8eeb_overlay.jpg",
    "reference": "images/spec/7a2f8eeb_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs around the round table with charcoal grey boucle fabric, keeping their frames, shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00425",
   "task_uid": "b22ff2ff",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/b22ff2ff.jpg",
   "img_b": "images/sys/gpt-image-2-B/b22ff2ff.jpg",
   "spec": {
    "overlay": "images/spec/b22ff2ff_overlay.jpg",
    "reference": "images/spec/b22ff2ff_ref.jpg",
    "instruction": "Replace the large central kitchen island countertop with dark green veined marble, preserving its shape, perspective, and surrounding lounge exactly.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00369",
   "task_uid": "c60c5375",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/c60c5375.jpg",
   "img_b": "images/sys/bagel-C/c60c5375.jpg",
   "spec": {
    "overlay": "images/spec/c60c5375_overlay.jpg",
    "reference": "images/spec/c60c5375_ref.jpg",
    "instruction": "Replace the coral upholstery on all four wooden chairs surrounding the round lobby table with deep emerald green velvet, keeping their shapes, positions, wooden frames, and the rest of the scene unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00196",
   "task_uid": "e527673f",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/e527673f.jpg",
   "img_b": "images/sys/omnigen2-A/e527673f.jpg",
   "spec": {
    "overlay": "images/spec/e527673f_overlay.jpg",
    "reference": "images/spec/e527673f_ref.jpg",
    "instruction": "Replace the large rectangular reception counter in the foreground with warm orange terracotta ceramic tiles, keeping its shape, position, and the surrounding spa interior unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00433",
   "task_uid": "9527bc45",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/9527bc45.jpg",
   "img_b": "images/sys/gpt-image-2-B/9527bc45.jpg",
   "spec": {
    "overlay": "images/spec/9527bc45_overlay.jpg",
    "reference": "images/spec/9527bc45_ref.jpg",
    "instruction": "Replace the large reception desk front in the foreground with dark green veined marble, keeping its shape, wooden countertop, and the rest of the lounge unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00447",
   "task_uid": "fc61ef6f",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/fc61ef6f.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/fc61ef6f.jpg",
   "spec": {
    "overlay": "images/spec/fc61ef6f_overlay.jpg",
    "reference": "images/spec/fc61ef6f_ref.jpg",
    "instruction": "Replace the front panels of the central reception desk with light oak wood planks, preserving the desk structure, brass trim, countertop, and surrounding dining room unchanged.",
    "material": "wood",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00146",
   "task_uid": "11424b6c",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/11424b6c.jpg",
   "img_b": "images/sys/qwen-image-edit/11424b6c.jpg",
   "spec": {
    "overlay": "images/spec/11424b6c_overlay.jpg",
    "reference": "images/spec/11424b6c_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the spa reception with dark green veined marble, keeping its shape, position, base, planter, and the rest of the scene unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00185",
   "task_uid": "efac555d",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/efac555d.jpg",
   "img_b": "images/sys/omnigen2-A/efac555d.jpg",
   "spec": {
    "overlay": "images/spec/efac555d_overlay.jpg",
    "reference": "images/spec/efac555d_ref.jpg",
    "instruction": "Replace the large central fireplace surround with warm terracotta ceramic tiles and light grout, keeping the fireplace opening and everything else unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00342",
   "task_uid": "47049cb6",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/47049cb6.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/47049cb6.jpg",
   "spec": {
    "overlay": "images/spec/47049cb6_overlay.jpg",
    "reference": "images/spec/47049cb6_ref.jpg",
    "instruction": "Replace the coral upholstered headboard behind the bed with cognac tan leather, preserving its vertical panels, shape, lighting, and the rest of the tropical bedroom unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00097",
   "task_uid": "7502eea6",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/7502eea6.jpg",
   "img_b": "images/sys/omnigen2-A/7502eea6.jpg",
   "spec": {
    "overlay": "images/spec/7502eea6_overlay.jpg",
    "reference": "images/spec/7502eea6_ref.jpg",
    "instruction": "Replace the full-height red curtains across the rear wall with navy blue suede, preserving their folds, dimensions, and position while keeping the rest of the restaurant unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00138",
   "task_uid": "1ad2b804",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/1ad2b804.jpg",
   "img_b": "images/sys/instruct-pix2pix/1ad2b804.jpg",
   "spec": {
    "overlay": "images/spec/1ad2b804_overlay.jpg",
    "reference": "images/spec/1ad2b804_ref.jpg",
    "instruction": "Replace the large rectangular reception desk front in the foreground with warm terracotta ceramic tiles and gray grout, keeping everything else unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00396",
   "task_uid": "07f2504b",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/07f2504b.jpg",
   "img_b": "images/sys/omnigen2-C/07f2504b.jpg",
   "spec": {
    "overlay": "images/spec/07f2504b_overlay.jpg",
    "reference": "images/spec/07f2504b_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear windows with deep emerald green velvet, preserving their shape, folds, position, and everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00122",
   "task_uid": "f67bacfc",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/f67bacfc.jpg",
   "img_b": "images/sys/instruct-pix2pix/f67bacfc.jpg",
   "spec": {
    "overlay": "images/spec/f67bacfc_overlay.jpg",
    "reference": "images/spec/f67bacfc_ref.jpg",
    "instruction": "Replace the large rectangular reception desk front in the foreground with warm terracotta ceramic tiles, keeping its shape, wooden countertop, and the rest of the living room unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00041",
   "task_uid": "f77d497c",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/f77d497c.jpg",
   "img_b": "images/sys/bagel-A/f77d497c.jpg",
   "spec": {
    "overlay": "images/spec/f77d497c_overlay.jpg",
    "reference": "images/spec/f77d497c_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the lounge chairs with warm brushed brass panels, keeping the furniture, architecture, lighting, and all other elements unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00217",
   "task_uid": "925ef76a",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/925ef76a.jpg",
   "img_b": "images/sys/gpt-image-2-A/925ef76a.jpg",
   "spec": {
    "overlay": "images/spec/925ef76a_overlay.jpg",
    "reference": "images/spec/925ef76a_ref.jpg",
    "instruction": "Replace the round coffee table top between the two cream armchairs with dark green veined marble, keeping its shape, position, ornate wooden base, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00449",
   "task_uid": "a0ed2c12",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/a0ed2c12.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/a0ed2c12.jpg",
   "spec": {
    "overlay": "images/spec/a0ed2c12_overlay.jpg",
    "reference": "images/spec/a0ed2c12_ref.jpg",
    "instruction": "Replace the large rectangular reception counter in the foreground with light oak wood planks, preserving its shape and keeping the surrounding tropical spa unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00232",
   "task_uid": "9c6f80bf",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/9c6f80bf.jpg",
   "img_b": "images/sys/nanobanana2lite-A/9c6f80bf.jpg",
   "spec": {
    "overlay": "images/spec/9c6f80bf_overlay.jpg",
    "reference": "images/spec/9c6f80bf_ref.jpg",
    "instruction": "Replace the upholstered seats and curved backrests of all four dining chairs around the round table with warm woven natural cane, keeping their wooden frames and the rest of the spa reception unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00208",
   "task_uid": "e645cfa3",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/e645cfa3.jpg",
   "img_b": "images/sys/gpt-image-2-A/e645cfa3.jpg",
   "spec": {
    "overlay": "images/spec/e645cfa3_overlay.jpg",
    "reference": "images/spec/e645cfa3_ref.jpg",
    "instruction": "Replace the central fireplace surround and full-height chimney breast with warm brushed brass panels, preserving the fireplace opening, structure, lighting, furnishings, and all surrounding details.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00478",
   "task_uid": "073e3f45",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/073e3f45.jpg",
   "img_b": "images/sys/paste/073e3f45.jpg",
   "spec": {
    "overlay": "images/spec/073e3f45_overlay.jpg",
    "reference": "images/spec/073e3f45_ref.jpg",
    "instruction": "Replace the curved reception desk front with light oak wood planks, preserving its shape, countertop, base, and the surrounding spa reception unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00432",
   "task_uid": "7b87170e",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/7b87170e.jpg",
   "img_b": "images/sys/gpt-image-2-B/7b87170e.jpg",
   "spec": {
    "overlay": "images/spec/7b87170e_overlay.jpg",
    "reference": "images/spec/7b87170e_ref.jpg",
    "instruction": "Replace the large fireplace surround on the right side of the tropical bedroom with brushed brass panels, preserving its structure and keeping everything else unchanged.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00441",
   "task_uid": "caef29ea",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/caef29ea.jpg",
   "img_b": "images/sys/paint-by-example/caef29ea.jpg",
   "spec": {
    "overlay": "images/spec/caef29ea_overlay.jpg",
    "reference": "images/spec/caef29ea_ref.jpg",
    "instruction": "Replace the large paneled front of the reception desk in the foreground with warm terracotta ceramic tiles, preserving its molding, shape, countertop, base, and the rest of the bedroom suite.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00224",
   "task_uid": "3f8ac675",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/3f8ac675.jpg",
   "img_b": "images/sys/nanobanana2lite-A/3f8ac675.jpg",
   "spec": {
    "overlay": "images/spec/3f8ac675_overlay.jpg",
    "reference": "images/spec/3f8ac675_ref.jpg",
    "instruction": "Replace the large kitchen island between the sofa and back counter with brushed brass panels, keeping its shape, stools, and the rest of the room unchanged.",
    "material": "metal",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00216",
   "task_uid": "9cf90757",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/9cf90757.jpg",
   "img_b": "images/sys/gpt-image-2-A/9cf90757.jpg",
   "spec": {
    "overlay": "images/spec/9cf90757_overlay.jpg",
    "reference": "images/spec/9cf90757_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with dark green veined marble, keeping its shape, position, base, and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00293",
   "task_uid": "5f0dfc04",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/5f0dfc04.jpg",
   "img_b": "images/sys/gpt-image-2-B/5f0dfc04.jpg",
   "spec": {
    "overlay": "images/spec/5f0dfc04_overlay.jpg",
    "reference": "images/spec/5f0dfc04_ref.jpg",
    "instruction": "Replace the full-height red curtains across the rear wall with woven natural cane, preserving their folds, position, and everything else unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00241",
   "task_uid": "47331403",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/47331403.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/47331403.jpg",
   "spec": {
    "overlay": "images/spec/47331403_overlay.jpg",
    "reference": "images/spec/47331403_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the hotel lounge with dark green veined marble, keeping its shape, position, base, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00383",
   "task_uid": "eda15bbb",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/eda15bbb.jpg",
   "img_b": "images/sys/gpt-image-2-C/eda15bbb.jpg",
   "spec": {
    "overlay": "images/spec/eda15bbb_overlay.jpg",
    "reference": "images/spec/eda15bbb_ref.jpg",
    "instruction": "Replace the large central feature wall behind the reception desk with warm beige travertine stone, keeping its boundaries and everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00050",
   "task_uid": "fb94d47c",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/fb94d47c.jpg",
   "img_b": "images/sys/bagel-A/fb94d47c.jpg",
   "spec": {
    "overlay": "images/spec/fb94d47c_overlay.jpg",
    "reference": "images/spec/fb94d47c_ref.jpg",
    "instruction": "Replace the upholstery on all four curved armchairs surrounding the round coffee table with navy blue suede, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00460",
   "task_uid": "20c64eca",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/20c64eca.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/20c64eca.jpg",
   "spec": {
    "overlay": "images/spec/20c64eca_overlay.jpg",
    "reference": "images/spec/20c64eca_ref.jpg",
    "instruction": "Replace the large freestanding counter in the foreground with polished green veined marble, keeping its shape, position, and the rest of the hotel lounge unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00283",
   "task_uid": "2e4578d7",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/2e4578d7.jpg",
   "img_b": "images/sys/omnigen2-B/2e4578d7.jpg",
   "spec": {
    "overlay": "images/spec/2e4578d7_overlay.jpg",
    "reference": "images/spec/2e4578d7_ref.jpg",
    "instruction": "Replace the curved front panel of the central reception desk with warm terracotta ceramic tiles, preserving its shape, countertop, base, and the rest of the tropical spa interior.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00220",
   "task_uid": "7cff2118",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/7cff2118.jpg",
   "img_b": "images/sys/gpt-image-2-A/7cff2118.jpg",
   "spec": {
    "overlay": "images/spec/7cff2118_overlay.jpg",
    "reference": "images/spec/7cff2118_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with light oak wood planks, keeping its shape, position, and everything else unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00307",
   "task_uid": "5c68feb0",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/5c68feb0.jpg",
   "img_b": "images/sys/nanobanana2lite-B/5c68feb0.jpg",
   "spec": {
    "overlay": "images/spec/5c68feb0_overlay.jpg",
    "reference": "images/spec/5c68feb0_ref.jpg",
    "instruction": "Replace the large front panel of the reception desk in the foreground with dark green veined marble, keeping its shape, trim, lighting, and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00393",
   "task_uid": "161ccfba",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/161ccfba.jpg",
   "img_b": "images/sys/nanobanana2lite-C/161ccfba.jpg",
   "spec": {
    "overlay": "images/spec/161ccfba_overlay.jpg",
    "reference": "images/spec/161ccfba_ref.jpg",
    "instruction": "Replace the large central kitchen island counter with warm brushed brass panels, preserving its shape, fixtures, and surroundings unchanged.",
    "material": "metal",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00250",
   "task_uid": "cdf6ac3b",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/cdf6ac3b.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/cdf6ac3b.jpg",
   "spec": {
    "overlay": "images/spec/cdf6ac3b_overlay.jpg",
    "reference": "images/spec/cdf6ac3b_ref.jpg",
    "instruction": "Replace the rectangular bed headboard against the back wall with charcoal grey boucle fabric, keeping its shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00187",
   "task_uid": "62d2d0d7",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/62d2d0d7.jpg",
   "img_b": "images/sys/omnigen2-A/62d2d0d7.jpg",
   "spec": {
    "overlay": "images/spec/62d2d0d7_overlay.jpg",
    "reference": "images/spec/62d2d0d7_ref.jpg",
    "instruction": "Replace the full-height coral curtains along the right wall with deep emerald green velvet, preserving their folds, shape, and position while keeping the rest of the spa reception unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00381",
   "task_uid": "4db44acf",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/4db44acf.jpg",
   "img_b": "images/sys/gpt-image-2-C/4db44acf.jpg",
   "spec": {
    "overlay": "images/spec/4db44acf_overlay.jpg",
    "reference": "images/spec/4db44acf_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with warm brushed brass panels, preserving its shape, dark wooden base, and the rest of the room unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00487",
   "task_uid": "08752cfd",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/08752cfd.jpg",
   "img_b": "images/sys/paste/08752cfd.jpg",
   "spec": {
    "overlay": "images/spec/08752cfd_overlay.jpg",
    "reference": "images/spec/08752cfd_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the bedroom’s rear windows with navy blue suede, preserving their folds, shape, position, and the rest of the room unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00305",
   "task_uid": "c234ac2e",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/c234ac2e.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/c234ac2e.jpg",
   "spec": {
    "overlay": "images/spec/c234ac2e_overlay.jpg",
    "reference": "images/spec/c234ac2e_ref.jpg",
    "instruction": "Replace the large upholstered headboard behind the bed with cognac tan leather matching the reference, keeping its shape, position, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00095",
   "task_uid": "8eafe160",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/8eafe160.jpg",
   "img_b": "images/sys/omnigen2-A/8eafe160.jpg",
   "spec": {
    "overlay": "images/spec/8eafe160_overlay.jpg",
    "reference": "images/spec/8eafe160_ref.jpg",
    "instruction": "Replace the large feature wall behind the bed with warm orange terracotta ceramic tiles, keeping the architecture, furniture, lighting, and all other surfaces unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00108",
   "task_uid": "66a838e7",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/66a838e7.jpg",
   "img_b": "images/sys/instruct-pix2pix/66a838e7.jpg",
   "spec": {
    "overlay": "images/spec/66a838e7_overlay.jpg",
    "reference": "images/spec/66a838e7_ref.jpg",
    "instruction": "Replace the large front panel of the wooden reception desk at the left foreground with dark green veined marble, keeping its wooden trim and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00127",
   "task_uid": "1969affb",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/1969affb.jpg",
   "img_b": "images/sys/instruct-pix2pix/1969affb.jpg",
   "spec": {
    "overlay": "images/spec/1969affb_overlay.jpg",
    "reference": "images/spec/1969affb_ref.jpg",
    "instruction": "Replace the large front panel of the reception desk in the foreground with warm beige travertine stone, keeping its shape, wooden countertop, and the rest of the restaurant unchanged.",
    "material": "stone",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00500",
   "task_uid": "1cc51847",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/1cc51847.jpg",
   "img_b": "images/sys/identity/1cc51847.jpg",
   "spec": {
    "overlay": "images/spec/1cc51847_overlay.jpg",
    "reference": "images/spec/1cc51847_ref.jpg",
    "instruction": "Replace the fabric upholstery on all four lounge chairs surrounding the coffee table with deep emerald green velvet, keeping their shapes, positions, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00273",
   "task_uid": "bd939bec",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/bd939bec.jpg",
   "img_b": "images/sys/omnigen2-B/bd939bec.jpg",
   "spec": {
    "overlay": "images/spec/bd939bec_overlay.jpg",
    "reference": "images/spec/bd939bec_ref.jpg",
    "instruction": "Replace the large central fireplace surround with dark green veined marble matching the reference, preserving its dimensions, fireplace opening, edge lighting, and the rest of the spa reception unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00062",
   "task_uid": "0995a2d7",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/0995a2d7.jpg",
   "img_b": "images/sys/flux-kontext/0995a2d7.jpg",
   "spec": {
    "overlay": "images/spec/0995a2d7_overlay.jpg",
    "reference": "images/spec/0995a2d7_ref.jpg",
    "instruction": "Replace the curved front face of the central reception desk with warm beige travertine stone, preserving its shape, countertop, base trim, and everything else.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00128",
   "task_uid": "1b151a87",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/1b151a87.jpg",
   "img_b": "images/sys/instruct-pix2pix/1b151a87.jpg",
   "spec": {
    "overlay": "images/spec/1b151a87_overlay.jpg",
    "reference": "images/spec/1b151a87_ref.jpg",
    "instruction": "Replace the large reception counter in the foreground with light oak wood planks, preserving its shape, position, trim, and the rest of the luxurious spa interior.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00073",
   "task_uid": "6a394052",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/6a394052.jpg",
   "img_b": "images/sys/flux-kontext/6a394052.jpg",
   "spec": {
    "overlay": "images/spec/6a394052_overlay.jpg",
    "reference": "images/spec/6a394052_ref.jpg",
    "instruction": "Replace the curved front panel of the central reception desk with warm beige travertine stone, keeping its shape, dark wooden countertop, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00202",
   "task_uid": "af1dbf6e",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/af1dbf6e.jpg",
   "img_b": "images/sys/gpt-image-2-A/af1dbf6e.jpg",
   "spec": {
    "overlay": "images/spec/af1dbf6e_overlay.jpg",
    "reference": "images/spec/af1dbf6e_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with warm terracotta ceramic tiles, keeping everything else unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00161",
   "task_uid": "2c511013",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/2c511013.jpg",
   "img_b": "images/sys/flux-kontext/2c511013.jpg",
   "spec": {
    "overlay": "images/spec/2c511013_overlay.jpg",
    "reference": "images/spec/2c511013_ref.jpg",
    "instruction": "Replace the curved reception desk front with light oak wood planks matching the reference, preserving its shape, position, countertop, base, and the rest of the hotel lounge unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00448",
   "task_uid": "8ca6d349",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/8ca6d349.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/8ca6d349.jpg",
   "spec": {
    "overlay": "images/spec/8ca6d349_overlay.jpg",
    "reference": "images/spec/8ca6d349_ref.jpg",
    "instruction": "Replace the large red feature wall behind the bed with warm beige travertine stone, keeping its structure and everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00057",
   "task_uid": "04f73200",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/04f73200.jpg",
   "img_b": "images/sys/bagel-A/04f73200.jpg",
   "spec": {
    "overlay": "images/spec/04f73200_overlay.jpg",
    "reference": "images/spec/04f73200_ref.jpg",
    "instruction": "Replace the curved reception desk front at the center of the spa with brushed brass panels, keeping its shape, countertop, base, and the rest of the room unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00080",
   "task_uid": "c0ee7cb8",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/c0ee7cb8.jpg",
   "img_b": "images/sys/flux-kontext/c0ee7cb8.jpg",
   "spec": {
    "overlay": "images/spec/c0ee7cb8_overlay.jpg",
    "reference": "images/spec/c0ee7cb8_ref.jpg",
    "instruction": "Replace the large central fireplace surround and raised hearth with warm terracotta ceramic tiles, preserving the fireplace structure and everything else unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00137",
   "task_uid": "f242e1a6",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/f242e1a6.jpg",
   "img_b": "images/sys/instruct-pix2pix/f242e1a6.jpg",
   "spec": {
    "overlay": "images/spec/f242e1a6_overlay.jpg",
    "reference": "images/spec/f242e1a6_ref.jpg",
    "instruction": "Replace the large front panel of the central reception desk with warm beige travertine stone, preserving its rounded shape and keeping everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00038",
   "task_uid": "95725a3b",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/95725a3b.jpg",
   "img_b": "images/sys/qwen-image-edit/95725a3b.jpg",
   "spec": {
    "overlay": "images/spec/95725a3b_overlay.jpg",
    "reference": "images/spec/95725a3b_ref.jpg",
    "instruction": "Replace the large central coral fireplace surround in the tropical restaurant with warm terracotta ceramic tiles, preserving its arched opening and keeping everything else unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00204",
   "task_uid": "920d91ab",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/920d91ab.jpg",
   "img_b": "images/sys/gpt-image-2-A/920d91ab.jpg",
   "spec": {
    "overlay": "images/spec/920d91ab_overlay.jpg",
    "reference": "images/spec/920d91ab_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with dark green veined marble, keeping its shape, position, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00405",
   "task_uid": "7cc2fd79",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/7cc2fd79.jpg",
   "img_b": "images/sys/omnigen2-C/7cc2fd79.jpg",
   "spec": {
    "overlay": "images/spec/7cc2fd79_overlay.jpg",
    "reference": "images/spec/7cc2fd79_ref.jpg",
    "instruction": "Replace the full-height coral curtains throughout the spa reception with warm woven natural cane, preserving their folds, shape, position, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00017",
   "task_uid": "f75ad766",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/f75ad766.jpg",
   "img_b": "images/sys/nanobanana2lite-A/f75ad766.jpg",
   "spec": {
    "overlay": "images/spec/f75ad766_overlay.jpg",
    "reference": "images/spec/f75ad766_ref.jpg",
    "instruction": "Replace the large front and side panels of the reception desk with warm beige travertine stone, preserving its shape, dark trim, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00429",
   "task_uid": "5530596b",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/5530596b.jpg",
   "img_b": "images/sys/gpt-image-2-B/5530596b.jpg",
   "spec": {
    "overlay": "images/spec/5530596b_overlay.jpg",
    "reference": "images/spec/5530596b_ref.jpg",
    "instruction": "Replace the large rectangular reception island in the foreground with dark green veined marble, preserving its shape, position, lighting, and all surrounding objects.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00225",
   "task_uid": "75759fa0",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/75759fa0.jpg",
   "img_b": "images/sys/nanobanana2lite-A/75759fa0.jpg",
   "spec": {
    "overlay": "images/spec/75759fa0_overlay.jpg",
    "reference": "images/spec/75759fa0_ref.jpg",
    "instruction": "Replace the upholstery on all six dining chairs with cognac tan leather matching the reference, keeping the chair frames and entire room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00190",
   "task_uid": "bb55d9cf",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/bb55d9cf.jpg",
   "img_b": "images/sys/omnigen2-A/bb55d9cf.jpg",
   "spec": {
    "overlay": "images/spec/bb55d9cf_overlay.jpg",
    "reference": "images/spec/bb55d9cf_ref.jpg",
    "instruction": "Replace the large kitchen island countertop and its front waterfall end with warm terracotta ceramic tiles, keeping its shape and the surrounding living room unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00059",
   "task_uid": "77465274",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/77465274.jpg",
   "img_b": "images/sys/bagel-A/77465274.jpg",
   "spec": {
    "overlay": "images/spec/77465274_overlay.jpg",
    "reference": "images/spec/77465274_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden lounge chairs surrounding the coffee table with cognac tan leather, preserving their shapes, positions, and the rest of the tropical lobby.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00040",
   "task_uid": "c8dd93fa",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/c8dd93fa.jpg",
   "img_b": "images/sys/qwen-image-edit/c8dd93fa.jpg",
   "spec": {
    "overlay": "images/spec/c8dd93fa_overlay.jpg",
    "reference": "images/spec/c8dd93fa_ref.jpg",
    "instruction": "Replace the front panels of the central reception desk with warm brushed brass, preserving the desk’s shape, seams, countertop, and the rest of the spa reception unchanged.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00295",
   "task_uid": "8168a4ff",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/8168a4ff.jpg",
   "img_b": "images/sys/gpt-image-2-B/8168a4ff.jpg",
   "spec": {
    "overlay": "images/spec/8168a4ff_overlay.jpg",
    "reference": "images/spec/8168a4ff_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with light oak wood planks, preserving its shape, position, base, and the rest of the bedroom unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00268",
   "task_uid": "7cb1922b",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/7cb1922b.jpg",
   "img_b": "images/sys/omnigen2-B/7cb1922b.jpg",
   "spec": {
    "overlay": "images/spec/7cb1922b_overlay.jpg",
    "reference": "images/spec/7cb1922b_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back wall with cognac tan leather, preserving their folds, shape, position, and the rest of the tropical hotel lounge unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00411",
   "task_uid": "4de2df07",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/4de2df07.jpg",
   "img_b": "images/sys/sd35-inpaint/4de2df07.jpg",
   "spec": {
    "overlay": "images/spec/4de2df07_overlay.jpg",
    "reference": "images/spec/4de2df07_ref.jpg",
    "instruction": "Replace the large coral upholstered headboard behind the bed with woven natural cane, preserving its rectangular shape and keeping everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00390",
   "task_uid": "aceaae00",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/aceaae00.jpg",
   "img_b": "images/sys/nanobanana2lite-C/aceaae00.jpg",
   "spec": {
    "overlay": "images/spec/aceaae00_overlay.jpg",
    "reference": "images/spec/aceaae00_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with warm terracotta ceramic tiles, keeping everything else unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00357",
   "task_uid": "56f22683",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/56f22683.jpg",
   "img_b": "images/sys/flux-kontext-ref/56f22683.jpg",
   "spec": {
    "overlay": "images/spec/56f22683_overlay.jpg",
    "reference": "images/spec/56f22683_ref.jpg",
    "instruction": "Replace the coral upholstery on all four lounge chairs with deep emerald green velvet, preserving their wooden frames, shapes, positions, and the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00191",
   "task_uid": "a3adcb15",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/a3adcb15.jpg",
   "img_b": "images/sys/omnigen2-A/a3adcb15.jpg",
   "spec": {
    "overlay": "images/spec/a3adcb15_overlay.jpg",
    "reference": "images/spec/a3adcb15_ref.jpg",
    "instruction": "Replace the large central feature wall behind the reception counter with warm beige travertine stone, preserving its boundaries and keeping the rest of the spa reception unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00484",
   "task_uid": "09dded6a",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/09dded6a.jpg",
   "img_b": "images/sys/paste/09dded6a.jpg",
   "spec": {
    "overlay": "images/spec/09dded6a_overlay.jpg",
    "reference": "images/spec/09dded6a_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the living room with dark green veined marble, keeping its shape, position, wooden base, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00310",
   "task_uid": "08357910",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/08357910.jpg",
   "img_b": "images/sys/nanobanana2lite-B/08357910.jpg",
   "spec": {
    "overlay": "images/spec/08357910_overlay.jpg",
    "reference": "images/spec/08357910_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back wall with deep emerald green velvet, preserving their folds and keeping everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00331",
   "task_uid": "620b2ac5",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/620b2ac5.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/620b2ac5.jpg",
   "spec": {
    "overlay": "images/spec/620b2ac5_overlay.jpg",
    "reference": "images/spec/620b2ac5_ref.jpg",
    "instruction": "Replace the upholstery on both low-profile sofas with warm woven natural cane, preserving their shape, position, wooden frames, and the rest of the spa reception unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00490",
   "task_uid": "164d0cdf",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/164d0cdf.jpg",
   "img_b": "images/sys/paste/164d0cdf.jpg",
   "spec": {
    "overlay": "images/spec/164d0cdf_overlay.jpg",
    "reference": "images/spec/164d0cdf_ref.jpg",
    "instruction": "Replace the kitchen island’s red-tinted waterfall countertop and side panels with warm travertine stone, preserving its shape and keeping everything else unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00001",
   "task_uid": "dbf762ba",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/dbf762ba.jpg",
   "img_b": "images/sys/nanobanana2lite-A/dbf762ba.jpg",
   "spec": {
    "overlay": "images/spec/dbf762ba_overlay.jpg",
    "reference": "images/spec/dbf762ba_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with warm brushed brass panels, preserving the niche, furnishings, lighting, and all other scene elements.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00033",
   "task_uid": "a2482503",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/a2482503.jpg",
   "img_b": "images/sys/qwen-image-edit/a2482503.jpg",
   "spec": {
    "overlay": "images/spec/a2482503_overlay.jpg",
    "reference": "images/spec/a2482503_ref.jpg",
    "instruction": "Replace the full-height curtains across the lobby windows with deep emerald green velvet, preserving their folds, shape, position, and everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00334",
   "task_uid": "d11ee600",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/d11ee600.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/d11ee600.jpg",
   "spec": {
    "overlay": "images/spec/d11ee600_overlay.jpg",
    "reference": "images/spec/d11ee600_ref.jpg",
    "instruction": "Replace the large feature wall behind the bed with warm terracotta ceramic tiles, keeping the architecture, furniture, lighting, and decor unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00242",
   "task_uid": "1529ca9b",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/1529ca9b.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/1529ca9b.jpg",
   "spec": {
    "overlay": "images/spec/1529ca9b_overlay.jpg",
    "reference": "images/spec/1529ca9b_ref.jpg",
    "instruction": "Replace the curved reception desk front at the left foreground with warm travertine stone, keeping its shape, dark countertop, base, and the rest of the restaurant unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00365",
   "task_uid": "029cf715",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/029cf715.jpg",
   "img_b": "images/sys/flux-kontext-ref/029cf715.jpg",
   "spec": {
    "overlay": "images/spec/029cf715_overlay.jpg",
    "reference": "images/spec/029cf715_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby seating area with warm terracotta ceramic tiles, preserving its shape, base, and the rest of the scene.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00344",
   "task_uid": "c2f2555b",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/c2f2555b.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/c2f2555b.jpg",
   "spec": {
    "overlay": "images/spec/c2f2555b_overlay.jpg",
    "reference": "images/spec/c2f2555b_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs around the round wooden table with deep emerald green velvet, keeping their wooden frames and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00136",
   "task_uid": "9db84762",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/9db84762.jpg",
   "img_b": "images/sys/instruct-pix2pix/9db84762.jpg",
   "spec": {
    "overlay": "images/spec/9db84762_overlay.jpg",
    "reference": "images/spec/9db84762_ref.jpg",
    "instruction": "Replace the upholstery on all three wooden armchairs with charcoal grey boucle fabric, keeping their frames, shapes, positions, and the rest of the lounge unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00474",
   "task_uid": "8d34d00e",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/8d34d00e.jpg",
   "img_b": "images/sys/identity/8d34d00e.jpg",
   "spec": {
    "overlay": "images/spec/8d34d00e_overlay.jpg",
    "reference": "images/spec/8d34d00e_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island in the foreground with brushed brass panels, preserving its shape, perspective, lighting, and the rest of the bedroom suite unchanged.",
    "material": "metal",
    "surface": "countertop"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00067",
   "task_uid": "1e2ffe5a",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/1e2ffe5a.jpg",
   "img_b": "images/sys/flux-kontext/1e2ffe5a.jpg",
   "spec": {
    "overlay": "images/spec/1e2ffe5a_overlay.jpg",
    "reference": "images/spec/1e2ffe5a_ref.jpg",
    "instruction": "Replace the upholstery on all five freestanding dining chairs with deep emerald green velvet, preserving their shapes, legs, positions, and everything else in the restaurant.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00088",
   "task_uid": "4de314a4",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/4de314a4.jpg",
   "img_b": "images/sys/omnigen2-A/4de314a4.jpg",
   "spec": {
    "overlay": "images/spec/4de314a4_overlay.jpg",
    "reference": "images/spec/4de314a4_ref.jpg",
    "instruction": "Replace the large rectangular feature wall behind the reception desk with warm brushed brass panels, keeping its dimensions, seams, lighting, and everything else unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00298",
   "task_uid": "1c7f4566",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/1c7f4566.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/1c7f4566.jpg",
   "spec": {
    "overlay": "images/spec/1c7f4566_overlay.jpg",
    "reference": "images/spec/1c7f4566_ref.jpg",
    "instruction": "Replace the red upholstery on all four dark-wood dining chairs around the table with deep emerald green velvet, keeping their frames and the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00277",
   "task_uid": "1a5d4376",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/1a5d4376.jpg",
   "img_b": "images/sys/omnigen2-B/1a5d4376.jpg",
   "spec": {
    "overlay": "images/spec/1a5d4376_overlay.jpg",
    "reference": "images/spec/1a5d4376_ref.jpg",
    "instruction": "Replace the large waterfall-edge kitchen island countertop in the foreground with warm terracotta ceramic tiles, keeping its shape, fixtures, cabinetry, and the surrounding room unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00100",
   "task_uid": "0a5188b6",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/0a5188b6.jpg",
   "img_b": "images/sys/omnigen2-A/0a5188b6.jpg",
   "spec": {
    "overlay": "images/spec/0a5188b6_overlay.jpg",
    "reference": "images/spec/0a5188b6_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the office lobby with dark green veined marble, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00240",
   "task_uid": "921614c4",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/921614c4.jpg",
   "img_b": "images/sys/nanobanana2lite-A/921614c4.jpg",
   "spec": {
    "overlay": "images/spec/921614c4_overlay.jpg",
    "reference": "images/spec/921614c4_ref.jpg",
    "instruction": "Replace the large feature wall behind the cream sofa with warm terracotta ceramic tiles, keeping the furniture, architecture, lighting, and all other surfaces unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00076",
   "task_uid": "343ee1ef",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/343ee1ef.jpg",
   "img_b": "images/sys/flux-kontext/343ee1ef.jpg",
   "spec": {
    "overlay": "images/spec/343ee1ef_overlay.jpg",
    "reference": "images/spec/343ee1ef_ref.jpg",
    "instruction": "Replace the large three-seat sofa upholstery in the center foreground with cognac tan leather, preserving its shape, seams, position, and the rest of the tropical living room.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00379",
   "task_uid": "4d9321c9",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/4d9321c9.jpg",
   "img_b": "images/sys/gpt-image-2-C/4d9321c9.jpg",
   "spec": {
    "overlay": "images/spec/4d9321c9_overlay.jpg",
    "reference": "images/spec/4d9321c9_ref.jpg",
    "instruction": "Replace the large central feature wall behind the lobby seating with light oak wood planks, keeping its shape, lighting, furnishings, plants, and surrounding scene unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00311",
   "task_uid": "9396f57a",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/9396f57a.jpg",
   "img_b": "images/sys/nanobanana2lite-B/9396f57a.jpg",
   "spec": {
    "overlay": "images/spec/9396f57a_overlay.jpg",
    "reference": "images/spec/9396f57a_ref.jpg",
    "instruction": "Replace the upholstery on both foreground sofas with navy blue suede, preserving their shape and position and keeping the plants and entire lobby unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00023",
   "task_uid": "82b4cf00",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/82b4cf00.jpg",
   "img_b": "images/sys/qwen-image-edit/82b4cf00.jpg",
   "spec": {
    "overlay": "images/spec/82b4cf00_overlay.jpg",
    "reference": "images/spec/82b4cf00_ref.jpg",
    "instruction": "Replace the full-height curtains across the office lobby windows with cognac tan leather, preserving their folds, shape, position, and the rest of the scene unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00492",
   "task_uid": "03e68b00",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/03e68b00.jpg",
   "img_b": "images/sys/identity/03e68b00.jpg",
   "spec": {
    "overlay": "images/spec/03e68b00_overlay.jpg",
    "reference": "images/spec/03e68b00_ref.jpg",
    "instruction": "Replace the large reception desk’s front and right-side panels with light oak wood planks, preserving its shape, stone countertop, base, and the surrounding tropical hotel lounge.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00468",
   "task_uid": "69359bca",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/69359bca.jpg",
   "img_b": "images/sys/identity/69359bca.jpg",
   "spec": {
    "overlay": "images/spec/69359bca_overlay.jpg",
    "reference": "images/spec/69359bca_ref.jpg",
    "instruction": "Replace the large recessed feature wall behind the low wooden console with warm brushed brass panels, keeping the furniture, architecture, lighting, and all other surfaces unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00317",
   "task_uid": "8db3253b",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/8db3253b.jpg",
   "img_b": "images/sys/bagel-B/8db3253b.jpg",
   "spec": {
    "overlay": "images/spec/8db3253b_overlay.jpg",
    "reference": "images/spec/8db3253b_ref.jpg",
    "instruction": "Replace the curved reception desk front at the left side of the bedroom suite with horizontal light oak wood planks, keeping its shape, brass base, countertop, and the rest of the room unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00445",
   "task_uid": "158ebf9a",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/158ebf9a.jpg",
   "img_b": "images/sys/paint-by-example/158ebf9a.jpg",
   "spec": {
    "overlay": "images/spec/158ebf9a_overlay.jpg",
    "reference": "images/spec/158ebf9a_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the dining tables with dark green veined marble, keeping all furniture, architecture, and lighting unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00349",
   "task_uid": "52c48f21",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/52c48f21.jpg",
   "img_b": "images/sys/flux-kontext-ref/52c48f21.jpg",
   "spec": {
    "overlay": "images/spec/52c48f21_overlay.jpg",
    "reference": "images/spec/52c48f21_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with light oak wood planks, keeping its shape, position, base, and the rest of the room unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00267",
   "task_uid": "8050e4f6",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/8050e4f6.jpg",
   "img_b": "images/sys/omnigen2-B/8050e4f6.jpg",
   "spec": {
    "overlay": "images/spec/8050e4f6_overlay.jpg",
    "reference": "images/spec/8050e4f6_ref.jpg",
    "instruction": "Replace the large red feature wall behind the dining tables with dark green, boldly white-veined marble, keeping its geometry and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00486",
   "task_uid": "132050df",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/132050df.jpg",
   "img_b": "images/sys/paste/132050df.jpg",
   "spec": {
    "overlay": "images/spec/132050df_overlay.jpg",
    "reference": "images/spec/132050df_ref.jpg",
    "instruction": "Replace the coral-red sofa in front of the bed with charcoal-grey bouclé fabric, preserving its shape, seams, position, lighting, and the rest of the bedroom unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00132",
   "task_uid": "5e507323",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/5e507323.jpg",
   "img_b": "images/sys/instruct-pix2pix/5e507323.jpg",
   "spec": {
    "overlay": "images/spec/5e507323_overlay.jpg",
    "reference": "images/spec/5e507323_ref.jpg",
    "instruction": "Replace the large rectangular reception island in the center foreground with light oak wood planks, preserving its shape, position, décor, and the rest of the room.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00236",
   "task_uid": "904da808",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/904da808.jpg",
   "img_b": "images/sys/nanobanana2lite-A/904da808.jpg",
   "spec": {
    "overlay": "images/spec/904da808_overlay.jpg",
    "reference": "images/spec/904da808_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with dark green veined marble, keeping its shape, position, base, and the rest of the spa reception unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00322",
   "task_uid": "3670feb6",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/3670feb6.jpg",
   "img_b": "images/sys/bagel-B/3670feb6.jpg",
   "spec": {
    "overlay": "images/spec/3670feb6_overlay.jpg",
    "reference": "images/spec/3670feb6_ref.jpg",
    "instruction": "Replace the large red rectangular island counter in the center foreground with light oak wood planks, preserving its dimensions, perspective, and position while keeping the restaurant dining room unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00174",
   "task_uid": "cdc37e80",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/cdc37e80.jpg",
   "img_b": "images/sys/flux-kontext/cdc37e80.jpg",
   "spec": {
    "overlay": "images/spec/cdc37e80_overlay.jpg",
    "reference": "images/spec/cdc37e80_ref.jpg",
    "instruction": "Replace the upholstery on all four curved lounge armchairs surrounding the round coffee table with deep emerald green velvet, keeping their shapes, positions, legs, and the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00055",
   "task_uid": "6ad2b0e1",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/6ad2b0e1.jpg",
   "img_b": "images/sys/bagel-A/6ad2b0e1.jpg",
   "spec": {
    "overlay": "images/spec/6ad2b0e1_overlay.jpg",
    "reference": "images/spec/6ad2b0e1_ref.jpg",
    "instruction": "Replace the large coral-red feature wall behind the media console with vertical light oak wood planks, keeping the room, furnishings, lighting, and wall geometry unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00195",
   "task_uid": "eba74574",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/eba74574.jpg",
   "img_b": "images/sys/omnigen2-A/eba74574.jpg",
   "spec": {
    "overlay": "images/spec/eba74574_overlay.jpg",
    "reference": "images/spec/eba74574_ref.jpg",
    "instruction": "Replace the full-height coral curtains across the rear window with deep emerald green velvet, keeping their folds, shape, position, and everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00094",
   "task_uid": "c1f2db2f",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/c1f2db2f.jpg",
   "img_b": "images/sys/omnigen2-A/c1f2db2f.jpg",
   "spec": {
    "overlay": "images/spec/c1f2db2f_overlay.jpg",
    "reference": "images/spec/c1f2db2f_ref.jpg",
    "instruction": "Replace the large rectangular island counter in the center of the dining room with light oak wood planks, keeping its shape, position, and the rest of the scene unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00013",
   "task_uid": "f9eb0eeb",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/f9eb0eeb.jpg",
   "img_b": "images/sys/nanobanana2lite-A/f9eb0eeb.jpg",
   "spec": {
    "overlay": "images/spec/f9eb0eeb_overlay.jpg",
    "reference": "images/spec/f9eb0eeb_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround centered on the back wall with warm travertine stone, keeping its shape, opening, and the rest of the room unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00406",
   "task_uid": "23702b9b",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/23702b9b.jpg",
   "img_b": "images/sys/sd35-inpaint/23702b9b.jpg",
   "spec": {
    "overlay": "images/spec/23702b9b_overlay.jpg",
    "reference": "images/spec/23702b9b_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with light oak wood planks, preserving its shape, position, base, and the rest of the restaurant unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00119",
   "task_uid": "82a4c513",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/82a4c513.jpg",
   "img_b": "images/sys/instruct-pix2pix/82a4c513.jpg",
   "spec": {
    "overlay": "images/spec/82a4c513_overlay.jpg",
    "reference": "images/spec/82a4c513_ref.jpg",
    "instruction": "Replace the coral-red upholstery on all four wooden chairs around the coffee table with navy blue suede, keeping their frames and the rest of the spa reception unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00200",
   "task_uid": "7b71d95f",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/7b71d95f.jpg",
   "img_b": "images/sys/omnigen2-A/7b71d95f.jpg",
   "spec": {
    "overlay": "images/spec/7b71d95f_overlay.jpg",
    "reference": "images/spec/7b71d95f_ref.jpg",
    "instruction": "Replace the large central fireplace feature wall with vertical light oak wood planks, preserving the fireplace opening and keeping everything else unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00171",
   "task_uid": "8a6242ba",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/8a6242ba.jpg",
   "img_b": "images/sys/flux-kontext/8a6242ba.jpg",
   "spec": {
    "overlay": "images/spec/8a6242ba_overlay.jpg",
    "reference": "images/spec/8a6242ba_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the central coffee table with cognac tan leather, preserving their shapes, seams, positions, wooden legs, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00394",
   "task_uid": "6d434451",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/6d434451.jpg",
   "img_b": "images/sys/nanobanana2lite-C/6d434451.jpg",
   "spec": {
    "overlay": "images/spec/6d434451_overlay.jpg",
    "reference": "images/spec/6d434451_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with warm travertine stone, keeping its shape, position, and everything else unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00375",
   "task_uid": "7fb45ca7",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/7fb45ca7.jpg",
   "img_b": "images/sys/bagel-C/7fb45ca7.jpg",
   "spec": {
    "overlay": "images/spec/7fb45ca7_overlay.jpg",
    "reference": "images/spec/7fb45ca7_ref.jpg",
    "instruction": "Replace the round coffee table top between the two cream chairs with light oak wood planks, keeping its shape, base, and the rest of the bedroom unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00481",
   "task_uid": "0ac3c54c",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/0ac3c54c.jpg",
   "img_b": "images/sys/paste/0ac3c54c.jpg",
   "spec": {
    "overlay": "images/spec/0ac3c54c_overlay.jpg",
    "reference": "images/spec/0ac3c54c_ref.jpg",
    "instruction": "Replace the large front panel of the reception desk at the left foreground with light oak wood planks, keeping its shape, trim, and everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00352",
   "task_uid": "31c6a0d6",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/31c6a0d6.jpg",
   "img_b": "images/sys/flux-kontext-ref/31c6a0d6.jpg",
   "spec": {
    "overlay": "images/spec/31c6a0d6_overlay.jpg",
    "reference": "images/spec/31c6a0d6_ref.jpg",
    "instruction": "Replace the fabric on the curved foreground sofa with charcoal grey boucle, preserving its shape, position, seams, and surrounding bedroom suite unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00025",
   "task_uid": "2bb84949",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/2bb84949.jpg",
   "img_b": "images/sys/qwen-image-edit/2bb84949.jpg",
   "spec": {
    "overlay": "images/spec/2bb84949_overlay.jpg",
    "reference": "images/spec/2bb84949_ref.jpg",
    "instruction": "Replace the central waterfall kitchen island counter with dark green veined marble matching the reference, keeping its shape, position, wooden cabinetry, and the rest of the room unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00159",
   "task_uid": "a6dbc76b",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/a6dbc76b.jpg",
   "img_b": "images/sys/qwen-image-edit/a6dbc76b.jpg",
   "spec": {
    "overlay": "images/spec/a6dbc76b_overlay.jpg",
    "reference": "images/spec/a6dbc76b_ref.jpg",
    "instruction": "Replace the upholstery on all dining armchairs with charcoal grey boucle fabric, preserving their wooden frames, shapes, positions, and the rest of the dining room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00011",
   "task_uid": "ff6c865b",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/ff6c865b.jpg",
   "img_b": "images/sys/nanobanana2lite-A/ff6c865b.jpg",
   "spec": {
    "overlay": "images/spec/ff6c865b_overlay.jpg",
    "reference": "images/spec/ff6c865b_ref.jpg",
    "instruction": "Replace the large central kitchen island’s countertop and exterior faces with warm orange terracotta ceramic tiles, preserving its shape, fixtures, and the rest of the room unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00148",
   "task_uid": "2afc978c",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/2afc978c.jpg",
   "img_b": "images/sys/qwen-image-edit/2afc978c.jpg",
   "spec": {
    "overlay": "images/spec/2afc978c_overlay.jpg",
    "reference": "images/spec/2afc978c_ref.jpg",
    "instruction": "Replace the upholstery on all six dining chairs with charcoal grey boucle fabric, preserving their shapes, black legs, positions, lighting, and the rest of the restaurant unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00069",
   "task_uid": "278a2c30",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/278a2c30.jpg",
   "img_b": "images/sys/flux-kontext/278a2c30.jpg",
   "spec": {
    "overlay": "images/spec/278a2c30_overlay.jpg",
    "reference": "images/spec/278a2c30_ref.jpg",
    "instruction": "Replace the large rectangular fireplace surround on the center wall with dark green veined marble, keeping its shape, opening, and everything else unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00407",
   "task_uid": "2b91f0f5",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/2b91f0f5.jpg",
   "img_b": "images/sys/sd35-inpaint/2b91f0f5.jpg",
   "spec": {
    "overlay": "images/spec/2b91f0f5_overlay.jpg",
    "reference": "images/spec/2b91f0f5_ref.jpg",
    "instruction": "Replace the coral upholstery on all four armchairs surrounding the round coffee table with warm woven natural cane, preserving their shapes, wooden legs, positions, and the rest of the lobby.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00144",
   "task_uid": "c9307306",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/c9307306.jpg",
   "img_b": "images/sys/qwen-image-edit/c9307306.jpg",
   "spec": {
    "overlay": "images/spec/c9307306_overlay.jpg",
    "reference": "images/spec/c9307306_ref.jpg",
    "instruction": "Replace the large red paneled feature wall behind the reception desk and lounge chairs with warm brushed brass panels, keeping everything else unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00085",
   "task_uid": "ebfb30d5",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/ebfb30d5.jpg",
   "img_b": "images/sys/omnigen2-A/ebfb30d5.jpg",
   "spec": {
    "overlay": "images/spec/ebfb30d5_overlay.jpg",
    "reference": "images/spec/ebfb30d5_ref.jpg",
    "instruction": "Replace the large reception desk front in the foreground with vertical light oak wood planks, keeping its shape, countertop, and the rest of the restaurant unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00156",
   "task_uid": "9df852a7",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/9df852a7.jpg",
   "img_b": "images/sys/qwen-image-edit/9df852a7.jpg",
   "spec": {
    "overlay": "images/spec/9df852a7_overlay.jpg",
    "reference": "images/spec/9df852a7_ref.jpg",
    "instruction": "Replace the large central kitchen island countertop with warm terracotta ceramic tile, preserving its dimensions, perspective, and everything else unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00480",
   "task_uid": "1ff5ade2",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/1ff5ade2.jpg",
   "img_b": "images/sys/paste/1ff5ade2.jpg",
   "spec": {
    "overlay": "images/spec/1ff5ade2_overlay.jpg",
    "reference": "images/spec/1ff5ade2_ref.jpg",
    "instruction": "Replace the large curved reception desk front in the foreground with warm beige travertine stone, preserving its shape, countertop, surroundings, and lighting.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00323",
   "task_uid": "ba00eca4",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/ba00eca4.jpg",
   "img_b": "images/sys/bagel-B/ba00eca4.jpg",
   "spec": {
    "overlay": "images/spec/ba00eca4_overlay.jpg",
    "reference": "images/spec/ba00eca4_ref.jpg",
    "instruction": "Replace the front and right-side panels of the central spa reception island with light oak wood planks, preserving the stone countertop and everything else unchanged.",
    "material": "wood",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00170",
   "task_uid": "6610166f",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/6610166f.jpg",
   "img_b": "images/sys/flux-kontext/6610166f.jpg",
   "spec": {
    "overlay": "images/spec/6610166f_overlay.jpg",
    "reference": "images/spec/6610166f_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden dining chairs around the round table with navy blue suede, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00078",
   "task_uid": "8aa13ffe",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/8aa13ffe.jpg",
   "img_b": "images/sys/flux-kontext/8aa13ffe.jpg",
   "spec": {
    "overlay": "images/spec/8aa13ffe_overlay.jpg",
    "reference": "images/spec/8aa13ffe_ref.jpg",
    "instruction": "Replace the full-height coral curtains across the back wall and right windows with navy blue suede, preserving their folds, dimensions, and the rest of the lobby unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00101",
   "task_uid": "9f94b9d8",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/9f94b9d8.jpg",
   "img_b": "images/sys/instruct-pix2pix/9f94b9d8.jpg",
   "spec": {
    "overlay": "images/spec/9f94b9d8_overlay.jpg",
    "reference": "images/spec/9f94b9d8_ref.jpg",
    "instruction": "Replace the upholstery on all three lounge armchairs surrounding the coffee table with charcoal grey boucle fabric, keeping their shapes, wooden legs, and the rest of the spa reception unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00356",
   "task_uid": "3b5ee7c1",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/3b5ee7c1.jpg",
   "img_b": "images/sys/flux-kontext-ref/3b5ee7c1.jpg",
   "spec": {
    "overlay": "images/spec/3b5ee7c1_overlay.jpg",
    "reference": "images/spec/3b5ee7c1_ref.jpg",
    "instruction": "Replace the large coral-red feature wall behind the dining tables with warm terracotta ceramic tiles, keeping everything else unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00309",
   "task_uid": "fb114bfd",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/fb114bfd.jpg",
   "img_b": "images/sys/nanobanana2lite-B/fb114bfd.jpg",
   "spec": {
    "overlay": "images/spec/fb114bfd_overlay.jpg",
    "reference": "images/spec/fb114bfd_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the living room with brushed brass panels matching the reference, preserving its shape, position, and everything else.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00046",
   "task_uid": "eb63ad36",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/eb63ad36.jpg",
   "img_b": "images/sys/bagel-A/eb63ad36.jpg",
   "spec": {
    "overlay": "images/spec/eb63ad36_overlay.jpg",
    "reference": "images/spec/eb63ad36_ref.jpg",
    "instruction": "Replace the large fireplace surround on the right side of the bedroom with warm orange terracotta ceramic tile, preserving its structure and leaving the room and inner firebox unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00167",
   "task_uid": "3084d36f",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/3084d36f.jpg",
   "img_b": "images/sys/flux-kontext/3084d36f.jpg",
   "spec": {
    "overlay": "images/spec/3084d36f_overlay.jpg",
    "reference": "images/spec/3084d36f_ref.jpg",
    "instruction": "Replace the large coral upholstered headboard behind the bed with light woven natural cane, preserving its three-panel shape and keeping the rest of the bedroom unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00458",
   "task_uid": "3908db9b",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/3908db9b.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/3908db9b.jpg",
   "spec": {
    "overlay": "images/spec/3908db9b_overlay.jpg",
    "reference": "images/spec/3908db9b_ref.jpg",
    "instruction": "Replace the large recessed feature wall behind the low wooden console with warm brushed brass panels, keeping its dimensions, surrounding trim, furnishings, and lighting unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00009",
   "task_uid": "48a5079f",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/48a5079f.jpg",
   "img_b": "images/sys/nanobanana2lite-A/48a5079f.jpg",
   "spec": {
    "overlay": "images/spec/48a5079f_overlay.jpg",
    "reference": "images/spec/48a5079f_ref.jpg",
    "instruction": "Replace the round central coffee table top with polished dark green veined marble, keeping its shape, base, position, and the rest of the tropical office lobby unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00387",
   "task_uid": "95966a44",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/95966a44.jpg",
   "img_b": "images/sys/nanobanana2lite-C/95966a44.jpg",
   "spec": {
    "overlay": "images/spec/95966a44_overlay.jpg",
    "reference": "images/spec/95966a44_ref.jpg",
    "instruction": "Replace the large recessed feature wall behind the reception desk with light oak vertical wood planks, keeping the furniture, plants, lighting, and surrounding architecture unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00362",
   "task_uid": "0a27aaff",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/0a27aaff.jpg",
   "img_b": "images/sys/flux-kontext-ref/0a27aaff.jpg",
   "spec": {
    "overlay": "images/spec/0a27aaff_overlay.jpg",
    "reference": "images/spec/0a27aaff_ref.jpg",
    "instruction": "Replace the red upholstered headboard behind the bed with cognac tan leather matching the reference, keeping its panel shapes and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00071",
   "task_uid": "fcc3174e",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/fcc3174e.jpg",
   "img_b": "images/sys/flux-kontext/fcc3174e.jpg",
   "spec": {
    "overlay": "images/spec/fcc3174e_overlay.jpg",
    "reference": "images/spec/fcc3174e_ref.jpg",
    "instruction": "Replace the large red feature wall behind the lounge seating with vertical light oak wood planks, keeping all furniture, plants, architecture, and lighting unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00424",
   "task_uid": "b10865c7",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/b10865c7.jpg",
   "img_b": "images/sys/gpt-image-2-B/b10865c7.jpg",
   "spec": {
    "overlay": "images/spec/b10865c7_overlay.jpg",
    "reference": "images/spec/b10865c7_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with warm travertine stone, preserving its shape, position, wooden base, and the rest of the dining room unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00155",
   "task_uid": "f075113a",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/f075113a.jpg",
   "img_b": "images/sys/qwen-image-edit/f075113a.jpg",
   "spec": {
    "overlay": "images/spec/f075113a_overlay.jpg",
    "reference": "images/spec/f075113a_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the right side of the office lobby with cognac tan leather, preserving their folds, position, lighting, and everything else unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00147",
   "task_uid": "863793d4",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/863793d4.jpg",
   "img_b": "images/sys/qwen-image-edit/863793d4.jpg",
   "spec": {
    "overlay": "images/spec/863793d4_overlay.jpg",
    "reference": "images/spec/863793d4_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with warm travertine stone, keeping its shape, position, base, and the rest of the spa reception unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00120",
   "task_uid": "5807a799",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/5807a799.jpg",
   "img_b": "images/sys/instruct-pix2pix/5807a799.jpg",
   "spec": {
    "overlay": "images/spec/5807a799_overlay.jpg",
    "reference": "images/spec/5807a799_ref.jpg",
    "instruction": "Replace the full-height window curtains across the restaurant with woven natural cane, preserving their folds, positions, and the rest of the dining room unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00181",
   "task_uid": "64d51395",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/64d51395.jpg",
   "img_b": "images/sys/omnigen2-A/64d51395.jpg",
   "spec": {
    "overlay": "images/spec/64d51395_overlay.jpg",
    "reference": "images/spec/64d51395_ref.jpg",
    "instruction": "Replace the curved reception desk front in the left foreground with light oak wood planks, keeping its shape, dark countertop, and the rest of the restaurant unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00003",
   "task_uid": "ebcd76ba",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/ebcd76ba.jpg",
   "img_b": "images/sys/nanobanana2lite-A/ebcd76ba.jpg",
   "spec": {
    "overlay": "images/spec/ebcd76ba_overlay.jpg",
    "reference": "images/spec/ebcd76ba_ref.jpg",
    "instruction": "Replace the tall central fireplace surround with warm beige travertine stone matching the reference, preserving the fireplace opening, structure, perspective, and everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00207",
   "task_uid": "2b8213eb",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/2b8213eb.jpg",
   "img_b": "images/sys/gpt-image-2-A/2b8213eb.jpg",
   "spec": {
    "overlay": "images/spec/2b8213eb_overlay.jpg",
    "reference": "images/spec/2b8213eb_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden lounge chairs surrounding the glass coffee table with deep emerald green velvet, keeping their frames, shapes, positions, and the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00188",
   "task_uid": "8594d235",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/8594d235.jpg",
   "img_b": "images/sys/omnigen2-A/8594d235.jpg",
   "spec": {
    "overlay": "images/spec/8594d235_overlay.jpg",
    "reference": "images/spec/8594d235_ref.jpg",
    "instruction": "Replace the large curved reception counter in the foreground with dark green veined marble, preserving its shape and keeping the surrounding spa interior unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00086",
   "task_uid": "5f392b9d",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/5f392b9d.jpg",
   "img_b": "images/sys/omnigen2-A/5f392b9d.jpg",
   "spec": {
    "overlay": "images/spec/5f392b9d_overlay.jpg",
    "reference": "images/spec/5f392b9d_ref.jpg",
    "instruction": "Replace the three-seat sofa’s coral fabric upholstery with cognac tan leather matching the reference, preserving its shape, seams, position, wooden legs, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00348",
   "task_uid": "043ba1ad",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/043ba1ad.jpg",
   "img_b": "images/sys/flux-kontext-ref/043ba1ad.jpg",
   "spec": {
    "overlay": "images/spec/043ba1ad_overlay.jpg",
    "reference": "images/spec/043ba1ad_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with warm terracotta ceramic tiles, keeping its shape, sink, faucet, and everything else unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00416",
   "task_uid": "43a8a5bf",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/43a8a5bf.jpg",
   "img_b": "images/sys/sd35-inpaint/43a8a5bf.jpg",
   "spec": {
    "overlay": "images/spec/43a8a5bf_overlay.jpg",
    "reference": "images/spec/43a8a5bf_ref.jpg",
    "instruction": "Replace the round coffee table top between the two armchairs with dark green veined marble, keeping its shape, wooden edge, base, and the rest of the bedroom unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00133",
   "task_uid": "2ff8c0b5",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/2ff8c0b5.jpg",
   "img_b": "images/sys/instruct-pix2pix/2ff8c0b5.jpg",
   "spec": {
    "overlay": "images/spec/2ff8c0b5_overlay.jpg",
    "reference": "images/spec/2ff8c0b5_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear wall with navy blue suede, preserving their shape and keeping the rest of the restaurant unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00102",
   "task_uid": "ad7a9e3d",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/ad7a9e3d.jpg",
   "img_b": "images/sys/instruct-pix2pix/ad7a9e3d.jpg",
   "spec": {
    "overlay": "images/spec/ad7a9e3d_overlay.jpg",
    "reference": "images/spec/ad7a9e3d_ref.jpg",
    "instruction": "Replace the round tabletop in the foreground with warm beige travertine stone, preserving its shape, position, wooden edge, and the rest of the restaurant scene unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00463",
   "task_uid": "ac8b8853",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/ac8b8853.jpg",
   "img_b": "images/sys/identity/ac8b8853.jpg",
   "spec": {
    "overlay": "images/spec/ac8b8853_overlay.jpg",
    "reference": "images/spec/ac8b8853_ref.jpg",
    "instruction": "Replace the large central fireplace feature wall in the modern spa reception with dark green veined marble, preserving the fireplace opening, wall geometry, lighting, and everything else.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00219",
   "task_uid": "1f6c65c1",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/1f6c65c1.jpg",
   "img_b": "images/sys/gpt-image-2-A/1f6c65c1.jpg",
   "spec": {
    "overlay": "images/spec/1f6c65c1_overlay.jpg",
    "reference": "images/spec/1f6c65c1_ref.jpg",
    "instruction": "Replace the large coral fabric headboard behind the daybed with warm woven natural cane, preserving its rectangular shape and keeping everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00412",
   "task_uid": "e47ea607",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/e47ea607.jpg",
   "img_b": "images/sys/sd35-inpaint/e47ea607.jpg",
   "spec": {
    "overlay": "images/spec/e47ea607_overlay.jpg",
    "reference": "images/spec/e47ea607_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island counter in the foreground with warm travertine stone, preserving its shape, position, lighting, and the rest of the lounge unchanged.",
    "material": "stone",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00359",
   "task_uid": "b6ac8229",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/b6ac8229.jpg",
   "img_b": "images/sys/flux-kontext-ref/b6ac8229.jpg",
   "spec": {
    "overlay": "images/spec/b6ac8229_overlay.jpg",
    "reference": "images/spec/b6ac8229_ref.jpg",
    "instruction": "Replace the large upholstered headboard centered behind the bed with deep emerald green velvet, preserving its rectangular shape, trim, lighting, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00389",
   "task_uid": "31b18e08",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/31b18e08.jpg",
   "img_b": "images/sys/nanobanana2lite-C/31b18e08.jpg",
   "spec": {
    "overlay": "images/spec/31b18e08_overlay.jpg",
    "reference": "images/spec/31b18e08_ref.jpg",
    "instruction": "Replace the large central kitchen island’s countertop and base with warm terracotta ceramic tiles, preserving its shape and keeping the surrounding Japandi lounge unchanged.",
    "material": "tile",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00404",
   "task_uid": "98ae82fd",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/98ae82fd.jpg",
   "img_b": "images/sys/omnigen2-C/98ae82fd.jpg",
   "spec": {
    "overlay": "images/spec/98ae82fd_overlay.jpg",
    "reference": "images/spec/98ae82fd_ref.jpg",
    "instruction": "Replace the coral fabric on both tall chaise lounge headboards with deep emerald green velvet, keeping their shape, vertical channeling, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00019",
   "task_uid": "21edd50f",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/21edd50f.jpg",
   "img_b": "images/sys/nanobanana2lite-A/21edd50f.jpg",
   "spec": {
    "overlay": "images/spec/21edd50f_overlay.jpg",
    "reference": "images/spec/21edd50f_ref.jpg",
    "instruction": "Replace the large central kitchen island’s countertop and outer panels with light oak wood planks, preserving its dimensions, sink, faucet, and surrounding office lobby unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00354",
   "task_uid": "6550dc78",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/6550dc78.jpg",
   "img_b": "images/sys/flux-kontext-ref/6550dc78.jpg",
   "spec": {
    "overlay": "images/spec/6550dc78_overlay.jpg",
    "reference": "images/spec/6550dc78_ref.jpg",
    "instruction": "Replace the coral upholstery on all four armchairs surrounding the lobby coffee table with navy blue suede, keeping their shapes, positions, frames, and the rest of the office unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00081",
   "task_uid": "2e1e73f0",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/2e1e73f0.jpg",
   "img_b": "images/sys/omnigen2-A/2e1e73f0.jpg",
   "spec": {
    "overlay": "images/spec/2e1e73f0_overlay.jpg",
    "reference": "images/spec/2e1e73f0_ref.jpg",
    "instruction": "Replace the full-height red curtains behind the reception desk with woven natural cane, preserving their folds, position, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00153",
   "task_uid": "3d989eb5",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/3d989eb5.jpg",
   "img_b": "images/sys/qwen-image-edit/3d989eb5.jpg",
   "spec": {
    "overlay": "images/spec/3d989eb5_overlay.jpg",
    "reference": "images/spec/3d989eb5_ref.jpg",
    "instruction": "Replace the upholstery on both sofas in the spa reception with navy blue suede, preserving their shapes, seams, positions, and the rest of the scene.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00083",
   "task_uid": "06aafc72",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/06aafc72.jpg",
   "img_b": "images/sys/omnigen2-A/06aafc72.jpg",
   "spec": {
    "overlay": "images/spec/06aafc72_overlay.jpg",
    "reference": "images/spec/06aafc72_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the back wall with cognac tan leather matching the reference, keeping their shape, position, and everything else unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00140",
   "task_uid": "957ad194",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/957ad194.jpg",
   "img_b": "images/sys/instruct-pix2pix/957ad194.jpg",
   "spec": {
    "overlay": "images/spec/957ad194_overlay.jpg",
    "reference": "images/spec/957ad194_ref.jpg",
    "instruction": "Replace the foreground sofa’s red upholstery with deep emerald green velvet, preserving its shape, seams, lighting, and position while keeping the rest of the bedroom unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00229",
   "task_uid": "6fda1fb6",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/6fda1fb6.jpg",
   "img_b": "images/sys/nanobanana2lite-A/6fda1fb6.jpg",
   "spec": {
    "overlay": "images/spec/6fda1fb6_overlay.jpg",
    "reference": "images/spec/6fda1fb6_ref.jpg",
    "instruction": "Replace the large fireplace surround and raised hearth on the right side of the bedroom with dark green veined marble, keeping everything else unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00446",
   "task_uid": "bb805f62",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/bb805f62.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/bb805f62.jpg",
   "spec": {
    "overlay": "images/spec/bb805f62_overlay.jpg",
    "reference": "images/spec/bb805f62_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with light oak wood planks, keeping its shape, dark countertop, base trim, and the rest of the dining room unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00413",
   "task_uid": "fa595b2f",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/fa595b2f.jpg",
   "img_b": "images/sys/sd35-inpaint/fa595b2f.jpg",
   "spec": {
    "overlay": "images/spec/fa595b2f_overlay.jpg",
    "reference": "images/spec/fa595b2f_ref.jpg",
    "instruction": "Replace the large rectangular island counter in the center of the spa reception with dark green veined marble, keeping its geometry, position, countertop items, and the rest of the scene unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00319",
   "task_uid": "33cff905",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/33cff905.jpg",
   "img_b": "images/sys/bagel-B/33cff905.jpg",
   "spec": {
    "overlay": "images/spec/33cff905_overlay.jpg",
    "reference": "images/spec/33cff905_ref.jpg",
    "instruction": "Replace the large rectangular upholstered headboard behind the reception sofa with cognac tan leather matching the reference, keeping its shape, position, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00177",
   "task_uid": "447835c6",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/447835c6.jpg",
   "img_b": "images/sys/flux-kontext/447835c6.jpg",
   "spec": {
    "overlay": "images/spec/447835c6_overlay.jpg",
    "reference": "images/spec/447835c6_ref.jpg",
    "instruction": "Replace the large central fireplace surround with warm reddish-orange terracotta ceramic tiles, preserving the fireplace opening, room layout, furniture, and lighting.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00355",
   "task_uid": "6df5d175",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/6df5d175.jpg",
   "img_b": "images/sys/flux-kontext-ref/6df5d175.jpg",
   "spec": {
    "overlay": "images/spec/6df5d175_overlay.jpg",
    "reference": "images/spec/6df5d175_ref.jpg",
    "instruction": "Replace the large front panel of the central reception desk with dark green veined marble, keeping its shape, wooden trim, and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00112",
   "task_uid": "85bc4eeb",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/85bc4eeb.jpg",
   "img_b": "images/sys/instruct-pix2pix/85bc4eeb.jpg",
   "spec": {
    "overlay": "images/spec/85bc4eeb_overlay.jpg",
    "reference": "images/spec/85bc4eeb_ref.jpg",
    "instruction": "Replace the large red feature wall behind the dining tables with light oak wood planks matching the reference, keeping all furniture, flooring, lighting, and surrounding surfaces unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00079",
   "task_uid": "832ab061",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/832ab061.jpg",
   "img_b": "images/sys/flux-kontext/832ab061.jpg",
   "spec": {
    "overlay": "images/spec/832ab061_overlay.jpg",
    "reference": "images/spec/832ab061_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with dark green veined marble, keeping its shape, countertop, brass base, and the rest of the spa reception unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00157",
   "task_uid": "a13e4da4",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/a13e4da4.jpg",
   "img_b": "images/sys/qwen-image-edit/a13e4da4.jpg",
   "spec": {
    "overlay": "images/spec/a13e4da4_overlay.jpg",
    "reference": "images/spec/a13e4da4_ref.jpg",
    "instruction": "Replace the full-height curtains across the rear windows with warm woven natural cane, preserving their folds, shape, position, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00374",
   "task_uid": "5889cf3f",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/5889cf3f.jpg",
   "img_b": "images/sys/bagel-C/5889cf3f.jpg",
   "spec": {
    "overlay": "images/spec/5889cf3f_overlay.jpg",
    "reference": "images/spec/5889cf3f_ref.jpg",
    "instruction": "Replace the central three-seat sofa upholstery with charcoal grey boucle fabric, preserving its shape, seams, wooden base, and the rest of the Japandi lobby unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00061",
   "task_uid": "1c7f4a8b",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/1c7f4a8b.jpg",
   "img_b": "images/sys/flux-kontext/1c7f4a8b.jpg",
   "spec": {
    "overlay": "images/spec/1c7f4a8b_overlay.jpg",
    "reference": "images/spec/1c7f4a8b_ref.jpg",
    "instruction": "Replace the central coral-red fireplace surround and raised hearth in the tropical restaurant with warm travertine stone, keeping its shape, position, and everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00210",
   "task_uid": "7cc533c8",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/7cc533c8.jpg",
   "img_b": "images/sys/gpt-image-2-A/7cc533c8.jpg",
   "spec": {
    "overlay": "images/spec/7cc533c8_overlay.jpg",
    "reference": "images/spec/7cc533c8_ref.jpg",
    "instruction": "Replace the coral-red upholstery on every dining armchair with navy blue suede matching the reference, while preserving each chair’s shape, wooden legs, placement, and the rest of the dining room.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00316",
   "task_uid": "44e936c0",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/44e936c0.jpg",
   "img_b": "images/sys/bagel-B/44e936c0.jpg",
   "spec": {
    "overlay": "images/spec/44e936c0_overlay.jpg",
    "reference": "images/spec/44e936c0_ref.jpg",
    "instruction": "Replace the long rectangular reception counter in the foreground with dark green veined marble, keeping its shape, position, vase, and the rest of the room unchanged.",
    "material": "marble",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00440",
   "task_uid": "decb6fb9",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/decb6fb9.jpg",
   "img_b": "images/sys/paint-by-example/decb6fb9.jpg",
   "spec": {
    "overlay": "images/spec/decb6fb9_overlay.jpg",
    "reference": "images/spec/decb6fb9_ref.jpg",
    "instruction": "Replace the large front panel of the reception desk at left with light oak wood planks, keeping its shape, dark countertop, base, side panel, and the rest of the bedroom unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00126",
   "task_uid": "1df110c6",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/1df110c6.jpg",
   "img_b": "images/sys/instruct-pix2pix/1df110c6.jpg",
   "spec": {
    "overlay": "images/spec/1df110c6_overlay.jpg",
    "reference": "images/spec/1df110c6_ref.jpg",
    "instruction": "Replace the large coral recessed feature wall behind the bed with dark green veined marble, keeping its rounded shape and everything else unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00218",
   "task_uid": "bff82501",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/bff82501.jpg",
   "img_b": "images/sys/gpt-image-2-A/bff82501.jpg",
   "spec": {
    "overlay": "images/spec/bff82501_overlay.jpg",
    "reference": "images/spec/bff82501_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of all four wooden dining chairs with woven natural cane, keeping their frames, shapes, positions, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00451",
   "task_uid": "2c3c271c",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/2c3c271c.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/2c3c271c.jpg",
   "spec": {
    "overlay": "images/spec/2c3c271c_overlay.jpg",
    "reference": "images/spec/2c3c271c_ref.jpg",
    "instruction": "Replace the large red reception desk front in the foreground with light oak wood planks, keeping its shape, countertop, base, and the rest of the restaurant unchanged.",
    "material": "wood",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00228",
   "task_uid": "c467ccd8",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/c467ccd8.jpg",
   "img_b": "images/sys/nanobanana2lite-A/c467ccd8.jpg",
   "spec": {
    "overlay": "images/spec/c467ccd8_overlay.jpg",
    "reference": "images/spec/c467ccd8_ref.jpg",
    "instruction": "Replace the upholstery on both foreground sofas with deep emerald green velvet, preserving their shapes, seams, legs, positions, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00106",
   "task_uid": "87be1ef5",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/87be1ef5.jpg",
   "img_b": "images/sys/instruct-pix2pix/87be1ef5.jpg",
   "spec": {
    "overlay": "images/spec/87be1ef5_overlay.jpg",
    "reference": "images/spec/87be1ef5_ref.jpg",
    "instruction": "Replace the full-height curtains across the lobby windows with charcoal grey boucle fabric, preserving their pleats, shape, position, and the rest of the scene unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00473",
   "task_uid": "6fee04cc",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/6fee04cc.jpg",
   "img_b": "images/sys/identity/6fee04cc.jpg",
   "spec": {
    "overlay": "images/spec/6fee04cc_overlay.jpg",
    "reference": "images/spec/6fee04cc_ref.jpg",
    "instruction": "Replace the large rounded upholstered headboard behind the daybed with warm woven natural cane, preserving its shape, position, lighting, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00428",
   "task_uid": "686d9369",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/686d9369.jpg",
   "img_b": "images/sys/gpt-image-2-B/686d9369.jpg",
   "spec": {
    "overlay": "images/spec/686d9369_overlay.jpg",
    "reference": "images/spec/686d9369_ref.jpg",
    "instruction": "Replace the red-painted feature wall behind the bed with light oak wood planks, keeping the room layout, furnishings, and lighting unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00026",
   "task_uid": "7d815448",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/7d815448.jpg",
   "img_b": "images/sys/qwen-image-edit/7d815448.jpg",
   "spec": {
    "overlay": "images/spec/7d815448_overlay.jpg",
    "reference": "images/spec/7d815448_ref.jpg",
    "instruction": "Replace the large L-shaped sectional sofa in the foreground with charcoal grey boucle fabric, preserving its shape, seams, position, and the rest of the office lobby.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00123",
   "task_uid": "9469921b",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/9469921b.jpg",
   "img_b": "images/sys/instruct-pix2pix/9469921b.jpg",
   "spec": {
    "overlay": "images/spec/9469921b_overlay.jpg",
    "reference": "images/spec/9469921b_ref.jpg",
    "instruction": "Replace the large coral-red feature wall behind the fireplace and seating with warm terracotta ceramic tiles, keeping all furnishings, fixtures, architecture, and lighting unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00176",
   "task_uid": "8ca5edf0",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/8ca5edf0.jpg",
   "img_b": "images/sys/flux-kontext/8ca5edf0.jpg",
   "spec": {
    "overlay": "images/spec/8ca5edf0_overlay.jpg",
    "reference": "images/spec/8ca5edf0_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with vertical light oak wood planks, keeping its shape, dark trim, and the rest of the restaurant unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00189",
   "task_uid": "784b336e",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/784b336e.jpg",
   "img_b": "images/sys/omnigen2-A/784b336e.jpg",
   "spec": {
    "overlay": "images/spec/784b336e_overlay.jpg",
    "reference": "images/spec/784b336e_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear window with charcoal grey boucle fabric, preserving their folds, dimensions, and position while keeping the rest of the lounge unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00014",
   "task_uid": "1b36a8b5",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/1b36a8b5.jpg",
   "img_b": "images/sys/nanobanana2lite-A/1b36a8b5.jpg",
   "spec": {
    "overlay": "images/spec/1b36a8b5_overlay.jpg",
    "reference": "images/spec/1b36a8b5_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby with dark green veined marble, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00173",
   "task_uid": "e4221e36",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/e4221e36.jpg",
   "img_b": "images/sys/flux-kontext/e4221e36.jpg",
   "spec": {
    "overlay": "images/spec/e4221e36_overlay.jpg",
    "reference": "images/spec/e4221e36_ref.jpg",
    "instruction": "Replace the full-height pleated curtains along the left wall with charcoal grey boucle fabric, keeping their shape, folds, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00438",
   "task_uid": "07c7f123",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/07c7f123.jpg",
   "img_b": "images/sys/paint-by-example/07c7f123.jpg",
   "spec": {
    "overlay": "images/spec/07c7f123_overlay.jpg",
    "reference": "images/spec/07c7f123_ref.jpg",
    "instruction": "Replace the round central dining table top with dark green veined marble matching the reference, preserving its shape, edge, reflections, and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00271",
   "task_uid": "57c0ac8b",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/57c0ac8b.jpg",
   "img_b": "images/sys/omnigen2-B/57c0ac8b.jpg",
   "spec": {
    "overlay": "images/spec/57c0ac8b_overlay.jpg",
    "reference": "images/spec/57c0ac8b_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the reception desk with light oak wood planks, keeping everything else unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00264",
   "task_uid": "49768679",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/49768679.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/49768679.jpg",
   "spec": {
    "overlay": "images/spec/49768679_overlay.jpg",
    "reference": "images/spec/49768679_ref.jpg",
    "instruction": "Replace the upholstery on both foreground armchairs with charcoal grey bouclé fabric, preserving their shapes, positions, and the rest of the warm contemporary bedroom unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00330",
   "task_uid": "f0f0bdb0",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/f0f0bdb0.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/f0f0bdb0.jpg",
   "spec": {
    "overlay": "images/spec/f0f0bdb0_overlay.jpg",
    "reference": "images/spec/f0f0bdb0_ref.jpg",
    "instruction": "Replace the large feature wall behind the reception desk with warm brushed brass panels, preserving its dimensions, lighting, furniture, and the rest of the lobby unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00495",
   "task_uid": "1da18d36",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/1da18d36.jpg",
   "img_b": "images/sys/identity/1da18d36.jpg",
   "spec": {
    "overlay": "images/spec/1da18d36_overlay.jpg",
    "reference": "images/spec/1da18d36_ref.jpg",
    "instruction": "Replace the large red upholstered headboard behind the central window seat with light woven natural cane matching the reference, keeping its shape, position, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00439",
   "task_uid": "3396928b",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/3396928b.jpg",
   "img_b": "images/sys/paint-by-example/3396928b.jpg",
   "spec": {
    "overlay": "images/spec/3396928b_overlay.jpg",
    "reference": "images/spec/3396928b_ref.jpg",
    "instruction": "Replace the large red fireplace surround on the left bedroom wall with warm brushed brass panels, preserving the fireplace opening, room layout, furnishings, and lighting.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00168",
   "task_uid": "5c03ec49",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/5c03ec49.jpg",
   "img_b": "images/sys/flux-kontext/5c03ec49.jpg",
   "spec": {
    "overlay": "images/spec/5c03ec49_overlay.jpg",
    "reference": "images/spec/5c03ec49_ref.jpg",
    "instruction": "Replace the upholstery on all six dining chairs with deep emerald green velvet, preserving their shapes, wooden frames, positions, and the rest of the restaurant unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00370",
   "task_uid": "2c88fff8",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/2c88fff8.jpg",
   "img_b": "images/sys/bagel-C/2c88fff8.jpg",
   "spec": {
    "overlay": "images/spec/2c88fff8_overlay.jpg",
    "reference": "images/spec/2c88fff8_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear bedroom wall with charcoal grey boucle fabric, preserving their folds, shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00338",
   "task_uid": "5af2f53d",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/5af2f53d.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/5af2f53d.jpg",
   "spec": {
    "overlay": "images/spec/5af2f53d_overlay.jpg",
    "reference": "images/spec/5af2f53d_ref.jpg",
    "instruction": "Replace the curved front facade of the central reception desk with dark green veined marble, preserving its shape, trim, position, and the rest of the spa reception unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00238",
   "task_uid": "84479f34",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/84479f34.jpg",
   "img_b": "images/sys/nanobanana2lite-A/84479f34.jpg",
   "spec": {
    "overlay": "images/spec/84479f34_overlay.jpg",
    "reference": "images/spec/84479f34_ref.jpg",
    "instruction": "Replace the large red-paneled fireplace surround on the center wall with warm beige travertine stone, preserving its panel layout, fireplace opening, and everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00262",
   "task_uid": "10c898f2",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/10c898f2.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/10c898f2.jpg",
   "spec": {
    "overlay": "images/spec/10c898f2_overlay.jpg",
    "reference": "images/spec/10c898f2_ref.jpg",
    "instruction": "Replace the seat and back upholstery on all four wooden dining chairs beside the round table with navy blue suede, keeping everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00324",
   "task_uid": "e8bc879e",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/e8bc879e.jpg",
   "img_b": "images/sys/bagel-B/e8bc879e.jpg",
   "spec": {
    "overlay": "images/spec/e8bc879e_overlay.jpg",
    "reference": "images/spec/e8bc879e_ref.jpg",
    "instruction": "Replace the large coral feature wall behind the bed with warm orange terracotta ceramic tiles, keeping the architecture, furnishings, lighting, and all other surfaces unchanged.",
    "material": "tile",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00235",
   "task_uid": "984f547b",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/984f547b.jpg",
   "img_b": "images/sys/nanobanana2lite-A/984f547b.jpg",
   "spec": {
    "overlay": "images/spec/984f547b_overlay.jpg",
    "reference": "images/spec/984f547b_ref.jpg",
    "instruction": "Replace the upholstery on all eight dining chairs with cognac tan leather matching the reference, preserving their shapes, black legs, positions, and the rest of the restaurant unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00339",
   "task_uid": "dad7448c",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/dad7448c.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/dad7448c.jpg",
   "spec": {
    "overlay": "images/spec/dad7448c_overlay.jpg",
    "reference": "images/spec/dad7448c_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround on the right bedroom wall with light oak wood planks, preserving its shape, firebox, and the rest of the room unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00212",
   "task_uid": "b5902a9e",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/b5902a9e.jpg",
   "img_b": "images/sys/gpt-image-2-A/b5902a9e.jpg",
   "spec": {
    "overlay": "images/spec/b5902a9e_overlay.jpg",
    "reference": "images/spec/b5902a9e_ref.jpg",
    "instruction": "Replace the front face of the central reception desk with warm terracotta ceramic tile, preserving its trim, shape, position, and the rest of the bedroom suite.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00302",
   "task_uid": "26bef20e",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/26bef20e.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/26bef20e.jpg",
   "spec": {
    "overlay": "images/spec/26bef20e_overlay.jpg",
    "reference": "images/spec/26bef20e_ref.jpg",
    "instruction": "Replace the large central fireplace surround in the warm restaurant dining room with brushed brass panels, preserving its panel seams, opening, shape, lighting, and all surrounding elements.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00274",
   "task_uid": "ad49bf73",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/ad49bf73.jpg",
   "img_b": "images/sys/omnigen2-B/ad49bf73.jpg",
   "spec": {
    "overlay": "images/spec/ad49bf73_overlay.jpg",
    "reference": "images/spec/ad49bf73_ref.jpg",
    "instruction": "Replace the round coffee table top in the bedroom foreground with light oak wood planks, keeping its shape, position, base, and everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00423",
   "task_uid": "bbad204c",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/bbad204c.jpg",
   "img_b": "images/sys/gpt-image-2-B/bbad204c.jpg",
   "spec": {
    "overlay": "images/spec/bbad204c_overlay.jpg",
    "reference": "images/spec/bbad204c_ref.jpg",
    "instruction": "Replace the full-height curtains behind the four-poster bed with deep emerald green velvet, preserving their folds and keeping everything else unchanged.",
    "material": "velvet",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00150",
   "task_uid": "5012b12b",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/5012b12b.jpg",
   "img_b": "images/sys/qwen-image-edit/5012b12b.jpg",
   "spec": {
    "overlay": "images/spec/5012b12b_overlay.jpg",
    "reference": "images/spec/5012b12b_ref.jpg",
    "instruction": "Replace the upholstery of all three rounded armchairs around the coffee table with warm woven natural cane, preserving their shapes, positions, and the rest of the spa reception unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00098",
   "task_uid": "48ac3a3e",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/48ac3a3e.jpg",
   "img_b": "images/sys/omnigen2-A/48ac3a3e.jpg",
   "spec": {
    "overlay": "images/spec/48ac3a3e_overlay.jpg",
    "reference": "images/spec/48ac3a3e_ref.jpg",
    "instruction": "Replace the large rectangular kitchen island counter in the foreground with light oak wood planks, keeping its shape, position, fruit bowl, and surrounding bedroom suite unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00209",
   "task_uid": "32a386ed",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/32a386ed.jpg",
   "img_b": "images/sys/gpt-image-2-A/32a386ed.jpg",
   "spec": {
    "overlay": "images/spec/32a386ed_overlay.jpg",
    "reference": "images/spec/32a386ed_ref.jpg",
    "instruction": "Replace the coral-red sofa upholstery centered at the foot of the bed with charcoal-grey boucle fabric, preserving its shape, seams, cushions, legs, and the rest of the bedroom unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00279",
   "task_uid": "1d0142a4",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/1d0142a4.jpg",
   "img_b": "images/sys/omnigen2-B/1d0142a4.jpg",
   "spec": {
    "overlay": "images/spec/1d0142a4_overlay.jpg",
    "reference": "images/spec/1d0142a4_ref.jpg",
    "instruction": "Replace the front panels of the central reception desk with warm brushed brass, preserving the desk’s shape, seams, countertop, base, and the surrounding restaurant scene.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00103",
   "task_uid": "70b686c0",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/70b686c0.jpg",
   "img_b": "images/sys/instruct-pix2pix/70b686c0.jpg",
   "spec": {
    "overlay": "images/spec/70b686c0_overlay.jpg",
    "reference": "images/spec/70b686c0_ref.jpg",
    "instruction": "Replace the large rectangular upholstered headboard behind the built-in sofa with charcoal grey bouclé fabric, keeping its shape, position, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00443",
   "task_uid": "1faa422a",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/1faa422a.jpg",
   "img_b": "images/sys/paint-by-example/1faa422a.jpg",
   "spec": {
    "overlay": "images/spec/1faa422a_overlay.jpg",
    "reference": "images/spec/1faa422a_ref.jpg",
    "instruction": "Replace the large coral-red feature wall behind the sofa with dark green veined marble, keeping the wooden frame, furniture, and rest of the room unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00288",
   "task_uid": "5e89205a",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/5e89205a.jpg",
   "img_b": "images/sys/gpt-image-2-B/5e89205a.jpg",
   "spec": {
    "overlay": "images/spec/5e89205a_overlay.jpg",
    "reference": "images/spec/5e89205a_ref.jpg",
    "instruction": "Replace the fabric upholstery of the foreground sofa with natural woven cane matching the reference, preserving its shape, position, seams, and the surrounding bedroom unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00269",
   "task_uid": "0500cc08",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/0500cc08.jpg",
   "img_b": "images/sys/omnigen2-B/0500cc08.jpg",
   "spec": {
    "overlay": "images/spec/0500cc08_overlay.jpg",
    "reference": "images/spec/0500cc08_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the bedroom’s back wall with navy blue suede, preserving their shape, folds, and position while keeping everything else unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00290",
   "task_uid": "36e9f7f5",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/36e9f7f5.jpg",
   "img_b": "images/sys/gpt-image-2-B/36e9f7f5.jpg",
   "spec": {
    "overlay": "images/spec/36e9f7f5_overlay.jpg",
    "reference": "images/spec/36e9f7f5_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the living room with light oak wood planks, keeping its shape, position, base, and everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00472",
   "task_uid": "c4820125",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/c4820125.jpg",
   "img_b": "images/sys/identity/c4820125.jpg",
   "spec": {
    "overlay": "images/spec/c4820125_overlay.jpg",
    "reference": "images/spec/c4820125_ref.jpg",
    "instruction": "Replace the full-height pleated curtains across the rear wall with cognac tan leather, preserving their folds, shape, position, and everything else unchanged.",
    "material": "leather",
    "surface": "other"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00456",
   "task_uid": "5303fd52",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/5303fd52.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/5303fd52.jpg",
   "spec": {
    "overlay": "images/spec/5303fd52_overlay.jpg",
    "reference": "images/spec/5303fd52_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lobby with light oak wood planks, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00175",
   "task_uid": "2c41c760",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/2c41c760.jpg",
   "img_b": "images/sys/flux-kontext/2c41c760.jpg",
   "spec": {
    "overlay": "images/spec/2c41c760_overlay.jpg",
    "reference": "images/spec/2c41c760_ref.jpg",
    "instruction": "Replace the large red feature wall behind the bed with warm brushed brass panels matching the reference, while keeping all furniture, textiles, plants, lighting, and other surfaces unchanged.",
    "material": "metal",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00350",
   "task_uid": "baffbf97",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/baffbf97.jpg",
   "img_b": "images/sys/flux-kontext-ref/baffbf97.jpg",
   "spec": {
    "overlay": "images/spec/baffbf97_overlay.jpg",
    "reference": "images/spec/baffbf97_ref.jpg",
    "instruction": "Replace the large recessed upholstered panel behind the built-in daybed with cognac tan leather, preserving its shape, lighting, and the rest of the room.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00497",
   "task_uid": "09e13f0e",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/09e13f0e.jpg",
   "img_b": "images/sys/identity/09e13f0e.jpg",
   "spec": {
    "overlay": "images/spec/09e13f0e_overlay.jpg",
    "reference": "images/spec/09e13f0e_ref.jpg",
    "instruction": "Replace the large central fireplace surround in the classic office lobby with warm terracotta ceramic tiles, preserving its architectural shape and keeping everything else unchanged.",
    "material": "tile",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00021",
   "task_uid": "641a8b1c",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/641a8b1c.jpg",
   "img_b": "images/sys/qwen-image-edit/641a8b1c.jpg",
   "spec": {
    "overlay": "images/spec/641a8b1c_overlay.jpg",
    "reference": "images/spec/641a8b1c_ref.jpg",
    "instruction": "Replace the large upholstered headboard behind the bed with deep emerald green velvet, preserving its shape, position, lighting, and the rest of the bedroom unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00353",
   "task_uid": "247b24e4",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/247b24e4.jpg",
   "img_b": "images/sys/flux-kontext-ref/247b24e4.jpg",
   "spec": {
    "overlay": "images/spec/247b24e4_overlay.jpg",
    "reference": "images/spec/247b24e4_ref.jpg",
    "instruction": "Replace the large central feature wall behind the reception desk with warm beige travertine stone, keeping its dimensions, lighting, and everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00367",
   "task_uid": "b0e941b7",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/b0e941b7.jpg",
   "img_b": "images/sys/bagel-C/b0e941b7.jpg",
   "spec": {
    "overlay": "images/spec/b0e941b7_overlay.jpg",
    "reference": "images/spec/b0e941b7_ref.jpg",
    "instruction": "Replace the upholstery on all four red dining armchairs with charcoal grey boucle fabric, preserving their shapes, wooden legs, positions, and the rest of the restaurant unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00278",
   "task_uid": "f4935a31",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/f4935a31.jpg",
   "img_b": "images/sys/omnigen2-B/f4935a31.jpg",
   "spec": {
    "overlay": "images/spec/f4935a31_overlay.jpg",
    "reference": "images/spec/f4935a31_ref.jpg",
    "instruction": "Replace the large kitchen island countertop in the foreground with light oak wood planks, preserving its shape and keeping everything else unchanged.",
    "material": "wood",
    "surface": "countertop"
   },
   "is_check": false
  },
  {
   "pair_id": "r00237",
   "task_uid": "29a700f5",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/29a700f5.jpg",
   "img_b": "images/sys/nanobanana2lite-A/29a700f5.jpg",
   "spec": {
    "overlay": "images/spec/29a700f5_overlay.jpg",
    "reference": "images/spec/29a700f5_ref.jpg",
    "instruction": "Replace the upholstery on all four lounge armchairs with light woven natural cane, preserving their shapes, positions, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00328",
   "task_uid": "9003d2f0",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/9003d2f0.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/9003d2f0.jpg",
   "spec": {
    "overlay": "images/spec/9003d2f0_overlay.jpg",
    "reference": "images/spec/9003d2f0_ref.jpg",
    "instruction": "Replace the rectangular fireplace surround on the right wall with light oak wood planks, keeping its shape, firebox, and the rest of the bedroom unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00491",
   "task_uid": "20021cea",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/20021cea.jpg",
   "img_b": "images/sys/identity/20021cea.jpg",
   "spec": {
    "overlay": "images/spec/20021cea_overlay.jpg",
    "reference": "images/spec/20021cea_ref.jpg",
    "instruction": "Replace the coral upholstery on all four dining chairs around the wooden table with charcoal grey boucle fabric, keeping their frames, shapes, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00422",
   "task_uid": "3d29f946",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/3d29f946.jpg",
   "img_b": "images/sys/gpt-image-2-B/3d29f946.jpg",
   "spec": {
    "overlay": "images/spec/3d29f946_overlay.jpg",
    "reference": "images/spec/3d29f946_ref.jpg",
    "instruction": "Replace the central fireplace surround and hearth in the classic restaurant dining room with warm beige travertine stone, preserving its shape and keeping everything else unchanged.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00245",
   "task_uid": "2b2d818e",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/2b2d818e.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/2b2d818e.jpg",
   "spec": {
    "overlay": "images/spec/2b2d818e_overlay.jpg",
    "reference": "images/spec/2b2d818e_ref.jpg",
    "instruction": "Replace the upholstery on the three dining chairs around the round table with deep emerald green velvet, keeping their shape, legs, positions, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00164",
   "task_uid": "fc6113ad",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/fc6113ad.jpg",
   "img_b": "images/sys/flux-kontext/fc6113ad.jpg",
   "spec": {
    "overlay": "images/spec/fc6113ad_overlay.jpg",
    "reference": "images/spec/fc6113ad_ref.jpg",
    "instruction": "Replace the full-height curtains across the rear wall with navy blue suede, preserving their folds and keeping everything else unchanged.",
    "material": "fabric",
    "surface": "other"
   },
   "is_check": false
  },
  {
   "pair_id": "r00070",
   "task_uid": "b4437c26",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/b4437c26.jpg",
   "img_b": "images/sys/flux-kontext/b4437c26.jpg",
   "spec": {
    "overlay": "images/spec/b4437c26_overlay.jpg",
    "reference": "images/spec/b4437c26_ref.jpg",
    "instruction": "Replace the round white coffee table top at the center of the living room with light oak wood planks, keeping its shape, base, and everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00149",
   "task_uid": "8d9bb034",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/8d9bb034.jpg",
   "img_b": "images/sys/qwen-image-edit/8d9bb034.jpg",
   "spec": {
    "overlay": "images/spec/8d9bb034_overlay.jpg",
    "reference": "images/spec/8d9bb034_ref.jpg",
    "instruction": "Replace the large feature wall behind the bed with warm beige travertine stone, keeping the architecture, furniture, lighting, and all other surfaces unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00346",
   "task_uid": "caac99ab",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/caac99ab.jpg",
   "img_b": "images/sys/flux-kontext-ref/caac99ab.jpg",
   "spec": {
    "overlay": "images/spec/caac99ab_overlay.jpg",
    "reference": "images/spec/caac99ab_ref.jpg",
    "instruction": "Replace the upholstered seats and backs of the wooden dining chairs with charcoal grey boucle fabric, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00145",
   "task_uid": "2dfb194e",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/2dfb194e.jpg",
   "img_b": "images/sys/qwen-image-edit/2dfb194e.jpg",
   "spec": {
    "overlay": "images/spec/2dfb194e_overlay.jpg",
    "reference": "images/spec/2dfb194e_ref.jpg",
    "instruction": "Replace the large red feature wall behind the curved reception desk with light oak wood planks, keeping everything else unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00261",
   "task_uid": "9e0605ae",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/9e0605ae.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/9e0605ae.jpg",
   "spec": {
    "overlay": "images/spec/9e0605ae_overlay.jpg",
    "reference": "images/spec/9e0605ae_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the office lobby with warm travertine stone, keeping its shape, position, base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00476",
   "task_uid": "1ac0a572",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/1ac0a572.jpg",
   "img_b": "images/sys/paste/1ac0a572.jpg",
   "spec": {
    "overlay": "images/spec/1ac0a572_overlay.jpg",
    "reference": "images/spec/1ac0a572_ref.jpg",
    "instruction": "Replace the large central feature wall panels behind the sofa with dark green veined marble, keeping the gold trim and everything else unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00012",
   "task_uid": "37cc9736",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/37cc9736.jpg",
   "img_b": "images/sys/nanobanana2lite-A/37cc9736.jpg",
   "spec": {
    "overlay": "images/spec/37cc9736_overlay.jpg",
    "reference": "images/spec/37cc9736_ref.jpg",
    "instruction": "Replace the curved reception desk front at the center of the lobby with vertical light oak wood planks, keeping everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00143",
   "task_uid": "3bac4872",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/3bac4872.jpg",
   "img_b": "images/sys/qwen-image-edit/3bac4872.jpg",
   "spec": {
    "overlay": "images/spec/3bac4872_overlay.jpg",
    "reference": "images/spec/3bac4872_ref.jpg",
    "instruction": "Replace the central paneled island counter, including its top and base, with warm brushed brass matching the reference, while preserving its shape and keeping the dining room unchanged.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00258",
   "task_uid": "920ed275",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/920ed275.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/920ed275.jpg",
   "spec": {
    "overlay": "images/spec/920ed275_overlay.jpg",
    "reference": "images/spec/920ed275_ref.jpg",
    "instruction": "Replace the large coral upholstered headboard behind the right-side daybed with woven natural cane matching the reference, preserving its shape, position, lighting, and the rest of the room.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00134",
   "task_uid": "f5bfc866",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/f5bfc866.jpg",
   "img_b": "images/sys/instruct-pix2pix/f5bfc866.jpg",
   "spec": {
    "overlay": "images/spec/f5bfc866_overlay.jpg",
    "reference": "images/spec/f5bfc866_ref.jpg",
    "instruction": "Replace the large recessed feature wall behind the dining tables with warm beige travertine stone, keeping its dimensions, lighting, furnishings, and the rest of the restaurant unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00493",
   "task_uid": "1bf254a5",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/1bf254a5.jpg",
   "img_b": "images/sys/identity/1bf254a5.jpg",
   "spec": {
    "overlay": "images/spec/1bf254a5_overlay.jpg",
    "reference": "images/spec/1bf254a5_ref.jpg",
    "instruction": "Replace the fabric upholstery of the large sofa on the left with navy blue suede matching the reference, preserving its shape, cushions, pillows, foreground plant, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00259",
   "task_uid": "c89ab943",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/c89ab943.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/c89ab943.jpg",
   "spec": {
    "overlay": "images/spec/c89ab943_overlay.jpg",
    "reference": "images/spec/c89ab943_ref.jpg",
    "instruction": "Replace the paneled base of the large central kitchen island with brushed brass, preserving the marble countertop, panel details, shape, lighting, and surrounding hotel lounge.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00291",
   "task_uid": "8dffa911",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/8dffa911.jpg",
   "img_b": "images/sys/gpt-image-2-B/8dffa911.jpg",
   "spec": {
    "overlay": "images/spec/8dffa911_overlay.jpg",
    "reference": "images/spec/8dffa911_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with dark green veined marble, keeping its shape, brass base, and the rest of the room unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00074",
   "task_uid": "09e4c161",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/09e4c161.jpg",
   "img_b": "images/sys/flux-kontext/09e4c161.jpg",
   "spec": {
    "overlay": "images/spec/09e4c161_overlay.jpg",
    "reference": "images/spec/09e4c161_ref.jpg",
    "instruction": "Replace the large central feature wall in the tropical restaurant with warm beige travertine stone, keeping its structure and the rest of the dining room unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00415",
   "task_uid": "3d27671d",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/3d27671d.jpg",
   "img_b": "images/sys/sd35-inpaint/3d27671d.jpg",
   "spec": {
    "overlay": "images/spec/3d27671d_overlay.jpg",
    "reference": "images/spec/3d27671d_ref.jpg",
    "instruction": "Replace the large rectangular upholstered headboard behind the bed with deep emerald green velvet, keeping its shape, position, lighting, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00336",
   "task_uid": "ac704474",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/ac704474.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/ac704474.jpg",
   "spec": {
    "overlay": "images/spec/ac704474_overlay.jpg",
    "reference": "images/spec/ac704474_ref.jpg",
    "instruction": "Replace the large coral fireplace surround centered in the spa reception with warm brushed brass panels, preserving the fireplace opening and everything else unchanged.",
    "material": "metal",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00233",
   "task_uid": "f5ad0bc2",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/f5ad0bc2.jpg",
   "img_b": "images/sys/nanobanana2lite-A/f5ad0bc2.jpg",
   "spec": {
    "overlay": "images/spec/f5ad0bc2_overlay.jpg",
    "reference": "images/spec/f5ad0bc2_ref.jpg",
    "instruction": "Replace the large reception desk front in the center of the tropical office lobby with dark green veined marble, keeping its shape, position, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00382",
   "task_uid": "bc663779",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/bc663779.jpg",
   "img_b": "images/sys/gpt-image-2-C/bc663779.jpg",
   "spec": {
    "overlay": "images/spec/bc663779_overlay.jpg",
    "reference": "images/spec/bc663779_ref.jpg",
    "instruction": "Replace the large central feature wall behind the dining tables with vertical light oak wood planks, keeping all furniture, lighting, architecture, and flooring unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00276",
   "task_uid": "ffe1da78",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/ffe1da78.jpg",
   "img_b": "images/sys/omnigen2-B/ffe1da78.jpg",
   "spec": {
    "overlay": "images/spec/ffe1da78_overlay.jpg",
    "reference": "images/spec/ffe1da78_ref.jpg",
    "instruction": "Replace the coral-red three-seat sofa upholstery centered against the back wall with navy blue suede, preserving its shape, seams, position, and the rest of the living room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00186",
   "task_uid": "311cb97d",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/311cb97d.jpg",
   "img_b": "images/sys/omnigen2-A/311cb97d.jpg",
   "spec": {
    "overlay": "images/spec/311cb97d_overlay.jpg",
    "reference": "images/spec/311cb97d_ref.jpg",
    "instruction": "Replace the central fireplace surround and mantel with dark green veined marble, preserving its architectural shape and keeping the entire lobby unchanged.",
    "material": "marble",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00068",
   "task_uid": "57b8fda1",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/57b8fda1.jpg",
   "img_b": "images/sys/flux-kontext/57b8fda1.jpg",
   "spec": {
    "overlay": "images/spec/57b8fda1_overlay.jpg",
    "reference": "images/spec/57b8fda1_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of all five wooden dining chairs with navy blue suede, keeping their shapes, positions, wooden frames, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00436",
   "task_uid": "b48728b8",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/b48728b8.jpg",
   "img_b": "images/sys/paint-by-example/b48728b8.jpg",
   "spec": {
    "overlay": "images/spec/b48728b8_overlay.jpg",
    "reference": "images/spec/b48728b8_ref.jpg",
    "instruction": "Replace the large red feature wall behind the lobby seating with dark green veined marble, keeping its geometry and everything else unchanged.",
    "material": "marble",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00243",
   "task_uid": "27ded523",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/27ded523.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/27ded523.jpg",
   "spec": {
    "overlay": "images/spec/27ded523_overlay.jpg",
    "reference": "images/spec/27ded523_ref.jpg",
    "instruction": "Replace the upholstery on all three armchairs in the spa reception with smooth navy blue suede matching the reference, keeping their shapes, positions, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00337",
   "task_uid": "1aec1246",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/1aec1246.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/1aec1246.jpg",
   "spec": {
    "overlay": "images/spec/1aec1246_overlay.jpg",
    "reference": "images/spec/1aec1246_ref.jpg",
    "instruction": "Replace the large central red feature wall behind the lounge chairs with light oak horizontal wood planks, keeping all furniture, décor, lighting, and surrounding architecture unchanged.",
    "material": "wood",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00111",
   "task_uid": "cf4030db",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/cf4030db.jpg",
   "img_b": "images/sys/instruct-pix2pix/cf4030db.jpg",
   "spec": {
    "overlay": "images/spec/cf4030db_overlay.jpg",
    "reference": "images/spec/cf4030db_ref.jpg",
    "instruction": "Replace the upholstery on all four curved armchairs surrounding the coffee table with woven natural cane, keeping their shapes, positions, and the rest of the warm office lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00047",
   "task_uid": "a4f0ef98",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/a4f0ef98.jpg",
   "img_b": "images/sys/bagel-A/a4f0ef98.jpg",
   "spec": {
    "overlay": "images/spec/a4f0ef98_overlay.jpg",
    "reference": "images/spec/a4f0ef98_ref.jpg",
    "instruction": "Replace the four front panels of the central reception desk with brushed brass, preserving the desk’s shape, seams, dark countertop, base, and the rest of the restaurant unchanged.",
    "material": "metal",
    "surface": "cabinet"
   },
   "is_check": false
  },
  {
   "pair_id": "r00437",
   "task_uid": "c7edd6e3",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/c7edd6e3.jpg",
   "img_b": "images/sys/paint-by-example/c7edd6e3.jpg",
   "spec": {
    "overlay": "images/spec/c7edd6e3_overlay.jpg",
    "reference": "images/spec/c7edd6e3_ref.jpg",
    "instruction": "Replace the upholstery on all four red lounge chairs surrounding the round coffee table with navy blue suede, keeping their shapes, legs, placement, and the rest of the room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00117",
   "task_uid": "3594abad",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/3594abad.jpg",
   "img_b": "images/sys/instruct-pix2pix/3594abad.jpg",
   "spec": {
    "overlay": "images/spec/3594abad_overlay.jpg",
    "reference": "images/spec/3594abad_ref.jpg",
    "instruction": "Replace the large red feature wall behind the restaurant seating with warm beige travertine stone, keeping everything else unchanged.",
    "material": "stone",
    "surface": "wall"
   },
   "is_check": false
  },
  {
   "pair_id": "r00099",
   "task_uid": "b658a9a7",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/b658a9a7.jpg",
   "img_b": "images/sys/omnigen2-A/b658a9a7.jpg",
   "spec": {
    "overlay": "images/spec/b658a9a7_overlay.jpg",
    "reference": "images/spec/b658a9a7_ref.jpg",
    "instruction": "Replace the round coffee table top between the two foreground armchairs with warm terracotta ceramic tiles and pale grout, keeping everything else unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00183",
   "task_uid": "08038563",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/08038563.jpg",
   "img_b": "images/sys/omnigen2-A/08038563.jpg",
   "spec": {
    "overlay": "images/spec/08038563_overlay.jpg",
    "reference": "images/spec/08038563_ref.jpg",
    "instruction": "Replace the large rectangular fireplace surround on the back wall with light oak wood planks, keeping the fireplace opening and everything else unchanged.",
    "material": "wood",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00332",
   "task_uid": "d0b4634b",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/d0b4634b.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/d0b4634b.jpg",
   "spec": {
    "overlay": "images/spec/d0b4634b_overlay.jpg",
    "reference": "images/spec/d0b4634b_ref.jpg",
    "instruction": "Replace the upholstery of the four curved dining armchairs with warm woven natural cane, preserving their shapes, positions, and the rest of the restaurant unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00072",
   "task_uid": "bb2f4a2c",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/bb2f4a2c.jpg",
   "img_b": "images/sys/flux-kontext/bb2f4a2c.jpg",
   "spec": {
    "overlay": "images/spec/bb2f4a2c_overlay.jpg",
    "reference": "images/spec/bb2f4a2c_ref.jpg",
    "instruction": "Replace the large red rectangular fireplace surround on the center wall with warm beige travertine stone, preserving the fireplace, geometry, lighting, and all other elements.",
    "material": "stone",
    "surface": "fireplace"
   },
   "is_check": false
  },
  {
   "pair_id": "r00107",
   "task_uid": "be91a572",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/be91a572.jpg",
   "img_b": "images/sys/instruct-pix2pix/be91a572.jpg",
   "spec": {
    "overlay": "images/spec/be91a572_overlay.jpg",
    "reference": "images/spec/be91a572_ref.jpg",
    "instruction": "Replace the large reception desk front in the left foreground with warm terracotta ceramic tile, keeping its shape and the rest of the bedroom unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00180",
   "task_uid": "5616e5ff",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/5616e5ff.jpg",
   "img_b": "images/sys/flux-kontext/5616e5ff.jpg",
   "spec": {
    "overlay": "images/spec/5616e5ff_overlay.jpg",
    "reference": "images/spec/5616e5ff_ref.jpg",
    "instruction": "Replace the red upholstered seats and backrests on all dining chairs with woven natural cane, preserving every chair’s dark wooden frame, shape, position, and the surrounding restaurant scene.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00450",
   "task_uid": "af5ed720",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/af5ed720.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/af5ed720.jpg",
   "spec": {
    "overlay": "images/spec/af5ed720_overlay.jpg",
    "reference": "images/spec/af5ed720_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with brushed brass panels matching the reference, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00294",
   "task_uid": "5bc09390",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/5bc09390.jpg",
   "img_b": "images/sys/gpt-image-2-B/5bc09390.jpg",
   "spec": {
    "overlay": "images/spec/5bc09390_overlay.jpg",
    "reference": "images/spec/5bc09390_ref.jpg",
    "instruction": "Replace the three-seat sofa’s fabric upholstery with navy blue suede matching the reference, preserving its wooden trim, shape, position, and the rest of the living room unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00303",
   "task_uid": "e13dd610",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/e13dd610.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/e13dd610.jpg",
   "spec": {
    "overlay": "images/spec/e13dd610_overlay.jpg",
    "reference": "images/spec/e13dd610_ref.jpg",
    "instruction": "Replace the large front face of the reception desk with terracotta ceramic tile matching the reference, keeping the desk geometry and the rest of the lobby unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00313",
   "task_uid": "e1856897",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/e1856897.jpg",
   "img_b": "images/sys/nanobanana2lite-B/e1856897.jpg",
   "spec": {
    "overlay": "images/spec/e1856897_overlay.jpg",
    "reference": "images/spec/e1856897_ref.jpg",
    "instruction": "Replace the central living-room sofa’s coral upholstery with navy blue suede matching the reference, while preserving its shape, wooden base, position, and the rest of the room.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00351",
   "task_uid": "bd17cae7",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/bd17cae7.jpg",
   "img_b": "images/sys/flux-kontext-ref/bd17cae7.jpg",
   "spec": {
    "overlay": "images/spec/bd17cae7_overlay.jpg",
    "reference": "images/spec/bd17cae7_ref.jpg",
    "instruction": "Replace the round coffee table top centered between the two armchairs with warm travertine stone, keeping its shape, position, base, and the rest of the bedroom unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00280",
   "task_uid": "ac73e5d6",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/ac73e5d6.jpg",
   "img_b": "images/sys/omnigen2-B/ac73e5d6.jpg",
   "spec": {
    "overlay": "images/spec/ac73e5d6_overlay.jpg",
    "reference": "images/spec/ac73e5d6_ref.jpg",
    "instruction": "Replace the upholstered backs and seats of all four wooden dining chairs around the round table with navy blue suede, keeping everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00142",
   "task_uid": "98d4d78c",
   "sys_a": "gpt-image-2-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/gpt-image-2-A/98d4d78c.jpg",
   "img_b": "images/sys/qwen-image-edit/98d4d78c.jpg",
   "spec": {
    "overlay": "images/spec/98d4d78c_overlay.jpg",
    "reference": "images/spec/98d4d78c_ref.jpg",
    "instruction": "Replace the large front panel of the central reception desk with warm terracotta ceramic tiles, keeping the desk structure and everything else unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00372",
   "task_uid": "486e50cd",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/486e50cd.jpg",
   "img_b": "images/sys/bagel-C/486e50cd.jpg",
   "spec": {
    "overlay": "images/spec/486e50cd_overlay.jpg",
    "reference": "images/spec/486e50cd_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden armchairs surrounding the round lobby table with charcoal-grey bouclé fabric, preserving their frames, shapes, positions, and the rest of the spa reception.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00363",
   "task_uid": "7a79e334",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/7a79e334.jpg",
   "img_b": "images/sys/flux-kontext-ref/7a79e334.jpg",
   "spec": {
    "overlay": "images/spec/7a79e334_overlay.jpg",
    "reference": "images/spec/7a79e334_ref.jpg",
    "instruction": "Replace the large upholstered headboard centered behind the bed with deep emerald green velvet, preserving its shape, lighting, and the rest of the room unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00304",
   "task_uid": "ce65b6ed",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/ce65b6ed.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/ce65b6ed.jpg",
   "spec": {
    "overlay": "images/spec/ce65b6ed_overlay.jpg",
    "reference": "images/spec/ce65b6ed_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with dark green veined marble, preserving its shape, wood trim, and the rest of the restaurant unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00089",
   "task_uid": "2de8d596",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/2de8d596.jpg",
   "img_b": "images/sys/omnigen2-A/2de8d596.jpg",
   "spec": {
    "overlay": "images/spec/2de8d596_overlay.jpg",
    "reference": "images/spec/2de8d596_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the central coffee table with deep emerald green velvet, keeping their shapes, wooden legs, and the rest of the lobby unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00376",
   "task_uid": "5c597c76",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/5c597c76.jpg",
   "img_b": "images/sys/gpt-image-2-C/5c597c76.jpg",
   "spec": {
    "overlay": "images/spec/5c597c76_overlay.jpg",
    "reference": "images/spec/5c597c76_ref.jpg",
    "instruction": "Replace the upholstery on all four wooden chairs around the central coffee table with cognac tan leather, keeping their shapes, positions, wooden frames, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00005",
   "task_uid": "0c39dd82",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/0c39dd82.jpg",
   "img_b": "images/sys/nanobanana2lite-A/0c39dd82.jpg",
   "spec": {
    "overlay": "images/spec/0c39dd82_overlay.jpg",
    "reference": "images/spec/0c39dd82_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the coffee table with cognac tan leather, preserving their shapes, seams, positions, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00499",
   "task_uid": "05ab7bf0",
   "sys_a": "paste",
   "sys_b": "identity",
   "img_a": "images/sys/paste/05ab7bf0.jpg",
   "img_b": "images/sys/identity/05ab7bf0.jpg",
   "spec": {
    "overlay": "images/spec/05ab7bf0_overlay.jpg",
    "reference": "images/spec/05ab7bf0_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the spa reception with warm travertine stone, keeping its shape, position, wooden base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00032",
   "task_uid": "aed9fe9b",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/aed9fe9b.jpg",
   "img_b": "images/sys/qwen-image-edit/aed9fe9b.jpg",
   "spec": {
    "overlay": "images/spec/aed9fe9b_overlay.jpg",
    "reference": "images/spec/aed9fe9b_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of the four wooden dining chairs around the table with woven natural cane, keeping everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00488",
   "task_uid": "045df7b9",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/045df7b9.jpg",
   "img_b": "images/sys/paste/045df7b9.jpg",
   "spec": {
    "overlay": "images/spec/045df7b9_overlay.jpg",
    "reference": "images/spec/045df7b9_ref.jpg",
    "instruction": "Replace the upholstery on all three armchairs in the dining room with cognac tan leather, preserving their shapes, seams, black legs, positions, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00002",
   "task_uid": "181912cd",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/181912cd.jpg",
   "img_b": "images/sys/nanobanana2lite-A/181912cd.jpg",
   "spec": {
    "overlay": "images/spec/181912cd_overlay.jpg",
    "reference": "images/spec/181912cd_ref.jpg",
    "instruction": "Replace the large front panel of the reception desk with warm beige travertine stone, preserving the desk shape, trim, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00163",
   "task_uid": "557c6170",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/557c6170.jpg",
   "img_b": "images/sys/flux-kontext/557c6170.jpg",
   "spec": {
    "overlay": "images/spec/557c6170_overlay.jpg",
    "reference": "images/spec/557c6170_ref.jpg",
    "instruction": "Replace the upholstery of all three curved lounge armchairs with light woven natural cane, preserving their shapes, positions, and the rest of the room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00165",
   "task_uid": "958759d9",
   "sys_a": "qwen-image-edit",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/qwen-image-edit/958759d9.jpg",
   "img_b": "images/sys/flux-kontext/958759d9.jpg",
   "spec": {
    "overlay": "images/spec/958759d9_overlay.jpg",
    "reference": "images/spec/958759d9_ref.jpg",
    "instruction": "Replace the round coffee table top in the center seating area with polished green veined marble, keeping its shape, base, position, and the rest of the spa reception unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00125",
   "task_uid": "828051da",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/828051da.jpg",
   "img_b": "images/sys/instruct-pix2pix/828051da.jpg",
   "spec": {
    "overlay": "images/spec/828051da_overlay.jpg",
    "reference": "images/spec/828051da_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the living room with dark green veined marble, keeping its shape, position, wooden base, and everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00194",
   "task_uid": "6d547a23",
   "sys_a": "bagel-A",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/bagel-A/6d547a23.jpg",
   "img_b": "images/sys/omnigen2-A/6d547a23.jpg",
   "spec": {
    "overlay": "images/spec/6d547a23_overlay.jpg",
    "reference": "images/spec/6d547a23_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with warm travertine stone, keeping its shape, position, base, and the rest of the room unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00115",
   "task_uid": "c38fa8a0",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/c38fa8a0.jpg",
   "img_b": "images/sys/instruct-pix2pix/c38fa8a0.jpg",
   "spec": {
    "overlay": "images/spec/c38fa8a0_overlay.jpg",
    "reference": "images/spec/c38fa8a0_ref.jpg",
    "instruction": "Replace the coral-red upholstery on all three lounge chairs with navy blue suede, preserving their shapes, wooden legs, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00368",
   "task_uid": "e0ad46c8",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/e0ad46c8.jpg",
   "img_b": "images/sys/bagel-C/e0ad46c8.jpg",
   "spec": {
    "overlay": "images/spec/e0ad46c8_overlay.jpg",
    "reference": "images/spec/e0ad46c8_ref.jpg",
    "instruction": "Replace the curved reception desk front on the right with brushed brass panels, keeping its dark wood top and base and everything else unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00466",
   "task_uid": "0b377889",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/0b377889.jpg",
   "img_b": "images/sys/identity/0b377889.jpg",
   "spec": {
    "overlay": "images/spec/0b377889_overlay.jpg",
    "reference": "images/spec/0b377889_ref.jpg",
    "instruction": "Replace the fabric upholstery on all three coral seating pieces in the classic living room with charcoal grey boucle, keeping their shapes, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00341",
   "task_uid": "832fd42a",
   "sys_a": "qwen-image-edit-inpaint",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/qwen-image-edit-inpaint/832fd42a.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/832fd42a.jpg",
   "spec": {
    "overlay": "images/spec/832fd42a_overlay.jpg",
    "reference": "images/spec/832fd42a_ref.jpg",
    "instruction": "Replace the coral-red upholstery on all six dining armchairs with cognac tan leather, preserving their dark wooden frames and keeping everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00358",
   "task_uid": "76e13c97",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/76e13c97.jpg",
   "img_b": "images/sys/flux-kontext-ref/76e13c97.jpg",
   "spec": {
    "overlay": "images/spec/76e13c97_overlay.jpg",
    "reference": "images/spec/76e13c97_ref.jpg",
    "instruction": "Replace the upholstery of both curved armchairs with smooth navy blue suede matching the reference, keeping their shape, wooden legs, and the rest of the room unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00431",
   "task_uid": "d4b58a1f",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/d4b58a1f.jpg",
   "img_b": "images/sys/gpt-image-2-B/d4b58a1f.jpg",
   "spec": {
    "overlay": "images/spec/d4b58a1f_overlay.jpg",
    "reference": "images/spec/d4b58a1f_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the living room with warm beige travertine stone, keeping its shape, position, dark wood edge, brass base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00113",
   "task_uid": "279fbc00",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/279fbc00.jpg",
   "img_b": "images/sys/instruct-pix2pix/279fbc00.jpg",
   "spec": {
    "overlay": "images/spec/279fbc00_overlay.jpg",
    "reference": "images/spec/279fbc00_ref.jpg",
    "instruction": "Replace the curved reception desk front with warm terracotta ceramic tiles, preserving its shape, countertop, base, and the rest of the spa reception unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00045",
   "task_uid": "407297ea",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/407297ea.jpg",
   "img_b": "images/sys/bagel-A/407297ea.jpg",
   "spec": {
    "overlay": "images/spec/407297ea_overlay.jpg",
    "reference": "images/spec/407297ea_ref.jpg",
    "instruction": "Replace the large upholstered headboard behind the bed with deep emerald green velvet, preserving its shape, position, and everything else in the room.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00321",
   "task_uid": "12bc30d5",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/12bc30d5.jpg",
   "img_b": "images/sys/bagel-B/12bc30d5.jpg",
   "spec": {
    "overlay": "images/spec/12bc30d5_overlay.jpg",
    "reference": "images/spec/12bc30d5_ref.jpg",
    "instruction": "Replace the coral-red upholstery on both foreground sofas with warm woven natural cane, preserving their shapes, positions, seams, and the rest of the tropical spa reception unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00410",
   "task_uid": "b0db1c47",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/b0db1c47.jpg",
   "img_b": "images/sys/sd35-inpaint/b0db1c47.jpg",
   "spec": {
    "overlay": "images/spec/b0db1c47_overlay.jpg",
    "reference": "images/spec/b0db1c47_ref.jpg",
    "instruction": "Replace the large reception desk front centered in the hotel lounge with dark green veined marble, preserving its shape, brass trim, position, and everything else.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00462",
   "task_uid": "ae13ed91",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/ae13ed91.jpg",
   "img_b": "images/sys/identity/ae13ed91.jpg",
   "spec": {
    "overlay": "images/spec/ae13ed91_overlay.jpg",
    "reference": "images/spec/ae13ed91_ref.jpg",
    "instruction": "Replace the coral-red upholstery on all four lobby chairs with navy blue suede matching the reference, keeping their frames, positions, and the rest of the scene unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00347",
   "task_uid": "dc02d949",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/dc02d949.jpg",
   "img_b": "images/sys/flux-kontext-ref/dc02d949.jpg",
   "spec": {
    "overlay": "images/spec/dc02d949_overlay.jpg",
    "reference": "images/spec/dc02d949_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with orange terracotta ceramic tile, preserving its shape, position, edge profile, and the rest of the spa reception unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00467",
   "task_uid": "b97b9a96",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/b97b9a96.jpg",
   "img_b": "images/sys/identity/b97b9a96.jpg",
   "spec": {
    "overlay": "images/spec/b97b9a96_overlay.jpg",
    "reference": "images/spec/b97b9a96_ref.jpg",
    "instruction": "Replace the upholstery on the three curved dining armchairs around the round wooden table with cognac tan leather, keeping their shape, position, and everything else unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00063",
   "task_uid": "30321c30",
   "sys_a": "bagel-A",
   "sys_b": "flux-kontext",
   "img_a": "images/sys/bagel-A/30321c30.jpg",
   "img_b": "images/sys/flux-kontext/30321c30.jpg",
   "spec": {
    "overlay": "images/spec/30321c30_overlay.jpg",
    "reference": "images/spec/30321c30_ref.jpg",
    "instruction": "Replace the large wooden front panel of the central living-room counter with warm travertine stone, keeping its shape, trim, position, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00006",
   "task_uid": "e6460d38",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/e6460d38.jpg",
   "img_b": "images/sys/nanobanana2lite-A/e6460d38.jpg",
   "spec": {
    "overlay": "images/spec/e6460d38_overlay.jpg",
    "reference": "images/spec/e6460d38_ref.jpg",
    "instruction": "Replace the front panels of the freestanding reception desk at the left foreground with warm brushed brass, keeping its shape, seams, wooden top, base, and the rest of the bedroom unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00469",
   "task_uid": "db51a960",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/db51a960.jpg",
   "img_b": "images/sys/identity/db51a960.jpg",
   "spec": {
    "overlay": "images/spec/db51a960_overlay.jpg",
    "reference": "images/spec/db51a960_ref.jpg",
    "instruction": "Replace the upholstery on both foreground armchairs with deep emerald green velvet, preserving their shape, position, seams, and all other scene elements.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00417",
   "task_uid": "6961b947",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/6961b947.jpg",
   "img_b": "images/sys/sd35-inpaint/6961b947.jpg",
   "spec": {
    "overlay": "images/spec/6961b947_overlay.jpg",
    "reference": "images/spec/6961b947_ref.jpg",
    "instruction": "Replace the red upholstered seats and backrests of the four wooden dining chairs around the table with woven natural cane, preserving their original shapes, positions, and everything else.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00400",
   "task_uid": "28cb4a3b",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/28cb4a3b.jpg",
   "img_b": "images/sys/omnigen2-C/28cb4a3b.jpg",
   "spec": {
    "overlay": "images/spec/28cb4a3b_overlay.jpg",
    "reference": "images/spec/28cb4a3b_ref.jpg",
    "instruction": "Replace the upholstery of the three foreground armchairs with deep emerald green velvet, keeping their shapes, positions, wooden legs, and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00306",
   "task_uid": "3ef62930",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/3ef62930.jpg",
   "img_b": "images/sys/nanobanana2lite-B/3ef62930.jpg",
   "spec": {
    "overlay": "images/spec/3ef62930_overlay.jpg",
    "reference": "images/spec/3ef62930_ref.jpg",
    "instruction": "Replace the large reception desk front in the foreground with brushed brass panels, preserving its shape, trim, and surrounding hotel lounge.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00361",
   "task_uid": "0700ab46",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "flux-kontext-ref",
   "img_a": "images/sys/flux-kontext-inpaint/0700ab46.jpg",
   "img_b": "images/sys/flux-kontext-ref/0700ab46.jpg",
   "spec": {
    "overlay": "images/spec/0700ab46_overlay.jpg",
    "reference": "images/spec/0700ab46_ref.jpg",
    "instruction": "Replace the upholstery on all three sofas in the classic hotel lounge with navy blue suede, keeping their shapes, positions, and everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00118",
   "task_uid": "9065fc51",
   "sys_a": "omnigen2-A",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/omnigen2-A/9065fc51.jpg",
   "img_b": "images/sys/instruct-pix2pix/9065fc51.jpg",
   "spec": {
    "overlay": "images/spec/9065fc51_overlay.jpg",
    "reference": "images/spec/9065fc51_ref.jpg",
    "instruction": "Replace the beige upholstery on all four lounge chairs surrounding the round coffee table with woven natural cane, keeping the wooden frames and the rest of the lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00475",
   "task_uid": "1436238d",
   "sys_a": "gt",
   "sys_b": "identity",
   "img_a": "images/sys/gt/1436238d.jpg",
   "img_b": "images/sys/identity/1436238d.jpg",
   "spec": {
    "overlay": "images/spec/1436238d_overlay.jpg",
    "reference": "images/spec/1436238d_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the lounge with brushed brass, preserving its shape, position, base, and the rest of the scene.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00234",
   "task_uid": "4540624f",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/4540624f.jpg",
   "img_b": "images/sys/nanobanana2lite-A/4540624f.jpg",
   "spec": {
    "overlay": "images/spec/4540624f_overlay.jpg",
    "reference": "images/spec/4540624f_ref.jpg",
    "instruction": "Replace the upholstery of the large foreground sofa with cognac tan leather, preserving its shape, seams, position, and the surrounding spa reception unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00043",
   "task_uid": "59c4f0a3",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/59c4f0a3.jpg",
   "img_b": "images/sys/bagel-A/59c4f0a3.jpg",
   "spec": {
    "overlay": "images/spec/59c4f0a3_overlay.jpg",
    "reference": "images/spec/59c4f0a3_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of all four wooden dining chairs around the table with plain navy blue suede, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00418",
   "task_uid": "163ad738",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/163ad738.jpg",
   "img_b": "images/sys/sd35-inpaint/163ad738.jpg",
   "spec": {
    "overlay": "images/spec/163ad738_overlay.jpg",
    "reference": "images/spec/163ad738_ref.jpg",
    "instruction": "Replace the upholstery on all three red sofas in the office lobby with navy blue suede, preserving their shapes, positions, seams, and all other scene details.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00444",
   "task_uid": "3c997a92",
   "sys_a": "gpt-image-2-C",
   "sys_b": "paint-by-example",
   "img_a": "images/sys/gpt-image-2-C/3c997a92.jpg",
   "img_b": "images/sys/paint-by-example/3c997a92.jpg",
   "spec": {
    "overlay": "images/spec/3c997a92_overlay.jpg",
    "reference": "images/spec/3c997a92_ref.jpg",
    "instruction": "Replace the upholstery on all four dining chairs around the round wooden table with deep emerald green velvet, keeping their wooden frames and everything else unchanged.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00453",
   "task_uid": "262a9c78",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/262a9c78.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/262a9c78.jpg",
   "spec": {
    "overlay": "images/spec/262a9c78_overlay.jpg",
    "reference": "images/spec/262a9c78_ref.jpg",
    "instruction": "Replace the curved reception desk front in the center of the lobby with warm brushed brass panels, keeping its form, position, countertop, and the rest of the scene unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00058",
   "task_uid": "9d77fd93",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/9d77fd93.jpg",
   "img_b": "images/sys/bagel-A/9d77fd93.jpg",
   "spec": {
    "overlay": "images/spec/9d77fd93_overlay.jpg",
    "reference": "images/spec/9d77fd93_ref.jpg",
    "instruction": "Replace the large paneled front of the reception-style desk in the living room with brushed brass, including its surrounding front trim, while keeping everything else unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00214",
   "task_uid": "898215a4",
   "sys_a": "gt",
   "sys_b": "gpt-image-2-A",
   "img_a": "images/sys/gt/898215a4.jpg",
   "img_b": "images/sys/gpt-image-2-A/898215a4.jpg",
   "spec": {
    "overlay": "images/spec/898215a4_overlay.jpg",
    "reference": "images/spec/898215a4_ref.jpg",
    "instruction": "Replace the round coffee table top between the two cream armchairs with light oak wood planks, keeping its shape, base, position, and the rest of the bedroom unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00265",
   "task_uid": "ea1a3c0e",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/ea1a3c0e.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/ea1a3c0e.jpg",
   "spec": {
    "overlay": "images/spec/ea1a3c0e_overlay.jpg",
    "reference": "images/spec/ea1a3c0e_ref.jpg",
    "instruction": "Replace the curved reception desk front in the foreground with light oak wood planks, keeping its shape, dark countertop, base, and the rest of the hotel lounge unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00266",
   "task_uid": "5a5b7455",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/5a5b7455.jpg",
   "img_b": "images/sys/omnigen2-B/5a5b7455.jpg",
   "spec": {
    "overlay": "images/spec/5a5b7455_overlay.jpg",
    "reference": "images/spec/5a5b7455_ref.jpg",
    "instruction": "Replace the large upholstered headboard behind the bed with smooth navy blue suede, preserving its shape and keeping the rest of the tropical hotel bedroom unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00373",
   "task_uid": "270a3f3b",
   "sys_a": "bagel-B",
   "sys_b": "bagel-C",
   "img_a": "images/sys/bagel-B/270a3f3b.jpg",
   "img_b": "images/sys/bagel-C/270a3f3b.jpg",
   "spec": {
    "overlay": "images/spec/270a3f3b_overlay.jpg",
    "reference": "images/spec/270a3f3b_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the black coffee table with navy blue suede, keeping their shapes, positions, and the rest of the lobby unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00284",
   "task_uid": "e6e227fa",
   "sys_a": "omnigen2-A",
   "sys_b": "omnigen2-B",
   "img_a": "images/sys/omnigen2-A/e6e227fa.jpg",
   "img_b": "images/sys/omnigen2-B/e6e227fa.jpg",
   "spec": {
    "overlay": "images/spec/e6e227fa_overlay.jpg",
    "reference": "images/spec/e6e227fa_ref.jpg",
    "instruction": "Replace the curved reception desk front on the left side of the living room with warm travertine stone, keeping its shape, position, countertop, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00092",
   "task_uid": "f209705c",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/f209705c.jpg",
   "img_b": "images/sys/omnigen2-A/f209705c.jpg",
   "spec": {
    "overlay": "images/spec/f209705c_overlay.jpg",
    "reference": "images/spec/f209705c_ref.jpg",
    "instruction": "Replace the large curved reception desk front in the foreground with warm travertine stone, keeping its shape, dark countertop, base, and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00247",
   "task_uid": "7632ff28",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/7632ff28.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/7632ff28.jpg",
   "spec": {
    "overlay": "images/spec/7632ff28_overlay.jpg",
    "reference": "images/spec/7632ff28_ref.jpg",
    "instruction": "Replace the red-tinted sofa beside the bedroom window with cognac tan leather, preserving its shape, position, seams, and surrounding scene.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00008",
   "task_uid": "568fe11e",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/568fe11e.jpg",
   "img_b": "images/sys/nanobanana2lite-A/568fe11e.jpg",
   "spec": {
    "overlay": "images/spec/568fe11e_overlay.jpg",
    "reference": "images/spec/568fe11e_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with warm travertine stone, keeping its shape, position, wooden base, and the rest of the bedroom unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00230",
   "task_uid": "eb825e2e",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/eb825e2e.jpg",
   "img_b": "images/sys/nanobanana2lite-A/eb825e2e.jpg",
   "spec": {
    "overlay": "images/spec/eb825e2e_overlay.jpg",
    "reference": "images/spec/eb825e2e_ref.jpg",
    "instruction": "Replace the large rectangular front panel of the reception desk in the foreground with warm brushed brass, keeping its shape, dark wood countertop, and everything else unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00052",
   "task_uid": "72e620c2",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/72e620c2.jpg",
   "img_b": "images/sys/bagel-A/72e620c2.jpg",
   "spec": {
    "overlay": "images/spec/72e620c2_overlay.jpg",
    "reference": "images/spec/72e620c2_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with brushed brass panels, preserving its shape, dark wooden base, and the rest of the spa reception unchanged.",
    "material": "metal",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00385",
   "task_uid": "5ce855ad",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/5ce855ad.jpg",
   "img_b": "images/sys/gpt-image-2-C/5ce855ad.jpg",
   "spec": {
    "overlay": "images/spec/5ce855ad_overlay.jpg",
    "reference": "images/spec/5ce855ad_ref.jpg",
    "instruction": "Replace the large inset front panel of the dark wooden reception desk with warm terracotta ceramic tiles, keeping the desk structure and the rest of the living room unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00087",
   "task_uid": "0c53bf64",
   "sys_a": "flux-kontext",
   "sys_b": "omnigen2-A",
   "img_a": "images/sys/flux-kontext/0c53bf64.jpg",
   "img_b": "images/sys/omnigen2-A/0c53bf64.jpg",
   "spec": {
    "overlay": "images/spec/0c53bf64_overlay.jpg",
    "reference": "images/spec/0c53bf64_ref.jpg",
    "instruction": "Replace the upholstery on all three rounded armchairs in the lobby with cognac tan leather matching the reference, preserving their shapes, positions, wooden legs, and the rest of the scene unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00016",
   "task_uid": "a2fd6ada",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/a2fd6ada.jpg",
   "img_b": "images/sys/nanobanana2lite-A/a2fd6ada.jpg",
   "spec": {
    "overlay": "images/spec/a2fd6ada_overlay.jpg",
    "reference": "images/spec/a2fd6ada_ref.jpg",
    "instruction": "Replace the large upholstered panel behind the left-side lobby bench with deep emerald green velvet, preserving its shape and everything else.",
    "material": "velvet",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00479",
   "task_uid": "022858a7",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/022858a7.jpg",
   "img_b": "images/sys/paste/022858a7.jpg",
   "spec": {
    "overlay": "images/spec/022858a7_overlay.jpg",
    "reference": "images/spec/022858a7_ref.jpg",
    "instruction": "Replace the large curved front panel of the reception desk with warm beige travertine stone, preserving its shape, position, trim, and the rest of the lobby.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00124",
   "task_uid": "56e6b145",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/56e6b145.jpg",
   "img_b": "images/sys/instruct-pix2pix/56e6b145.jpg",
   "spec": {
    "overlay": "images/spec/56e6b145_overlay.jpg",
    "reference": "images/spec/56e6b145_ref.jpg",
    "instruction": "Replace the large front panel of the wooden reception desk in the foreground with warm travertine stone, keeping its frame and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00386",
   "task_uid": "19b48543",
   "sys_a": "nanobanana2lite-B",
   "sys_b": "nanobanana2lite-C",
   "img_a": "images/sys/nanobanana2lite-B/19b48543.jpg",
   "img_b": "images/sys/nanobanana2lite-C/19b48543.jpg",
   "spec": {
    "overlay": "images/spec/19b48543_overlay.jpg",
    "reference": "images/spec/19b48543_ref.jpg",
    "instruction": "Replace the red upholstered seats, backs, and arm pads of all dining-room armchairs with woven natural cane, keeping their dark wood frames and everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00384",
   "task_uid": "9525fac0",
   "sys_a": "gpt-image-2-B",
   "sys_b": "gpt-image-2-C",
   "img_a": "images/sys/gpt-image-2-B/9525fac0.jpg",
   "img_b": "images/sys/gpt-image-2-C/9525fac0.jpg",
   "spec": {
    "overlay": "images/spec/9525fac0_overlay.jpg",
    "reference": "images/spec/9525fac0_ref.jpg",
    "instruction": "Replace the round coffee table top at the center of the tropical hotel lounge with warm travertine stone, keeping its shape, position, base, and the rest of the scene unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00027",
   "task_uid": "63f6ce56",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/63f6ce56.jpg",
   "img_b": "images/sys/qwen-image-edit/63f6ce56.jpg",
   "spec": {
    "overlay": "images/spec/63f6ce56_overlay.jpg",
    "reference": "images/spec/63f6ce56_ref.jpg",
    "instruction": "Replace the large reception desk front on the right with light oak wood planks, preserving its shape, position, countertop, décor, and the rest of the room.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00139",
   "task_uid": "f35be965",
   "sys_a": "flux-kontext",
   "sys_b": "instruct-pix2pix",
   "img_a": "images/sys/flux-kontext/f35be965.jpg",
   "img_b": "images/sys/instruct-pix2pix/f35be965.jpg",
   "spec": {
    "overlay": "images/spec/f35be965_overlay.jpg",
    "reference": "images/spec/f35be965_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with warm orange terracotta ceramic tile, preserving its shape, edge, base, lighting, and the rest of the bedroom suite.",
    "material": "ceramic",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00401",
   "task_uid": "8a99162b",
   "sys_a": "omnigen2-B",
   "sys_b": "omnigen2-C",
   "img_a": "images/sys/omnigen2-B/8a99162b.jpg",
   "img_b": "images/sys/omnigen2-C/8a99162b.jpg",
   "spec": {
    "overlay": "images/spec/8a99162b_overlay.jpg",
    "reference": "images/spec/8a99162b_ref.jpg",
    "instruction": "Replace the large front panel of the dark wood reception desk at left with warm beige travertine stone, preserving the wooden frame and everything else unchanged.",
    "material": "stone",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00248",
   "task_uid": "8839db81",
   "sys_a": "flux-kontext",
   "sys_b": "flux-kontext-inpaint",
   "img_a": "images/sys/flux-kontext/8839db81.jpg",
   "img_b": "images/sys/flux-kontext-inpaint/8839db81.jpg",
   "spec": {
    "overlay": "images/spec/8839db81_overlay.jpg",
    "reference": "images/spec/8839db81_ref.jpg",
    "instruction": "Replace the upholstery on all three coral armchairs with woven natural cane, preserving their shapes, dark metal legs, positions, and the rest of the warm office lobby unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00022",
   "task_uid": "863bb31f",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "qwen-image-edit",
   "img_a": "images/sys/nanobanana2lite-A/863bb31f.jpg",
   "img_b": "images/sys/qwen-image-edit/863bb31f.jpg",
   "spec": {
    "overlay": "images/spec/863bb31f_overlay.jpg",
    "reference": "images/spec/863bb31f_ref.jpg",
    "instruction": "Replace the large curved reception desk front in the center of the hotel lounge with dark green veined marble, keeping everything else unchanged.",
    "material": "marble",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00010",
   "task_uid": "f967d37e",
   "sys_a": "gpt-image-2-A",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gpt-image-2-A/f967d37e.jpg",
   "img_b": "images/sys/nanobanana2lite-A/f967d37e.jpg",
   "spec": {
    "overlay": "images/spec/f967d37e_overlay.jpg",
    "reference": "images/spec/f967d37e_ref.jpg",
    "instruction": "Replace the coral upholstery on both foreground armchairs with navy blue suede, preserving their wooden legs, shape, position, and the rest of the tropical bedroom suite unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00231",
   "task_uid": "2de060b8",
   "sys_a": "gt",
   "sys_b": "nanobanana2lite-A",
   "img_a": "images/sys/gt/2de060b8.jpg",
   "img_b": "images/sys/nanobanana2lite-A/2de060b8.jpg",
   "spec": {
    "overlay": "images/spec/2de060b8_overlay.jpg",
    "reference": "images/spec/2de060b8_ref.jpg",
    "instruction": "Replace the round coffee table top in the center foreground with light oak wood planks, keeping its shape, position, base, and the rest of the lounge unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00325",
   "task_uid": "9fa62c8f",
   "sys_a": "bagel-A",
   "sys_b": "bagel-B",
   "img_a": "images/sys/bagel-A/9fa62c8f.jpg",
   "img_b": "images/sys/bagel-B/9fa62c8f.jpg",
   "spec": {
    "overlay": "images/spec/9fa62c8f_overlay.jpg",
    "reference": "images/spec/9fa62c8f_ref.jpg",
    "instruction": "Replace the curved reception desk front at center-right with light oak wood planks, preserving its shape, countertop, trim, and the rest of the tropical living room.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00414",
   "task_uid": "148b10f9",
   "sys_a": "sdxl-inpaint",
   "sys_b": "sd35-inpaint",
   "img_a": "images/sys/sdxl-inpaint/148b10f9.jpg",
   "img_b": "images/sys/sd35-inpaint/148b10f9.jpg",
   "spec": {
    "overlay": "images/spec/148b10f9_overlay.jpg",
    "reference": "images/spec/148b10f9_ref.jpg",
    "instruction": "Replace the large front panel of the dark-framed reception desk in the foreground with light oak wood planks, keeping everything else unchanged.",
    "material": "wood",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00459",
   "task_uid": "58d009a3",
   "sys_a": "flux-kontext-ref",
   "sys_b": "qwen-image-edit-ref",
   "img_a": "images/sys/flux-kontext-ref/58d009a3.jpg",
   "img_b": "images/sys/qwen-image-edit-ref/58d009a3.jpg",
   "spec": {
    "overlay": "images/spec/58d009a3_overlay.jpg",
    "reference": "images/spec/58d009a3_ref.jpg",
    "instruction": "Replace the upholstered seats and backrests of the three wooden dining chairs with navy blue suede, keeping everything else unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00312",
   "task_uid": "50caed57",
   "sys_a": "nanobanana2lite-A",
   "sys_b": "nanobanana2lite-B",
   "img_a": "images/sys/nanobanana2lite-A/50caed57.jpg",
   "img_b": "images/sys/nanobanana2lite-B/50caed57.jpg",
   "spec": {
    "overlay": "images/spec/50caed57_overlay.jpg",
    "reference": "images/spec/50caed57_ref.jpg",
    "instruction": "Replace the upholstery on all three rounded armchairs with warm woven natural cane, preserving their shapes, positions, and the rest of the living room unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00048",
   "task_uid": "988642a4",
   "sys_a": "qwen-image-edit",
   "sys_b": "bagel-A",
   "img_a": "images/sys/qwen-image-edit/988642a4.jpg",
   "img_b": "images/sys/bagel-A/988642a4.jpg",
   "spec": {
    "overlay": "images/spec/988642a4_overlay.jpg",
    "reference": "images/spec/988642a4_ref.jpg",
    "instruction": "Replace the round coffee table top in the center of the lobby with reddish terracotta ceramic tiles and light grout, keeping everything else unchanged.",
    "material": "tile",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00299",
   "task_uid": "5e85d49b",
   "sys_a": "qwen-image-edit",
   "sys_b": "qwen-image-edit-inpaint",
   "img_a": "images/sys/qwen-image-edit/5e85d49b.jpg",
   "img_b": "images/sys/qwen-image-edit-inpaint/5e85d49b.jpg",
   "spec": {
    "overlay": "images/spec/5e85d49b_overlay.jpg",
    "reference": "images/spec/5e85d49b_ref.jpg",
    "instruction": "Replace the upholstery on all three rounded armchairs around the coffee table with charcoal grey boucle fabric, preserving their shapes, positions, and the rest of the spa reception unchanged.",
    "material": "fabric",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00421",
   "task_uid": "bce4dea1",
   "sys_a": "flux-kontext-inpaint",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/flux-kontext-inpaint/bce4dea1.jpg",
   "img_b": "images/sys/gpt-image-2-B/bce4dea1.jpg",
   "spec": {
    "overlay": "images/spec/bce4dea1_overlay.jpg",
    "reference": "images/spec/bce4dea1_ref.jpg",
    "instruction": "Replace the upholstery on all four armchairs surrounding the coffee table with smooth navy blue suede, keeping their shapes, positions, wooden legs, and the rest of the lobby unchanged.",
    "material": "leather",
    "surface": "furniture"
   },
   "is_check": false
  },
  {
   "pair_id": "r00477",
   "task_uid": "09c3734b",
   "sys_a": "gt",
   "sys_b": "paste",
   "img_a": "images/sys/gt/09c3734b.jpg",
   "img_b": "images/sys/paste/09c3734b.jpg",
   "spec": {
    "overlay": "images/spec/09c3734b_overlay.jpg",
    "reference": "images/spec/09c3734b_ref.jpg",
    "instruction": "Replace the large red-upholstered bench backrest along the left wall with warm woven natural cane, preserving its rectangular shape and keeping everything else unchanged.",
    "material": "rattan",
    "surface": "furniture"
   },
   "is_check": true,
   "expect": "gt"
  },
  {
   "pair_id": "r00289",
   "task_uid": "4bb17bc4",
   "sys_a": "gpt-image-2-A",
   "sys_b": "gpt-image-2-B",
   "img_a": "images/sys/gpt-image-2-A/4bb17bc4.jpg",
   "img_b": "images/sys/gpt-image-2-B/4bb17bc4.jpg",
   "spec": {
    "overlay": "images/spec/4bb17bc4_overlay.jpg",
    "reference": "images/spec/4bb17bc4_ref.jpg",
    "instruction": "Replace the round coffee table top in the foreground with warm orange terracotta ceramic tile, preserving its shape, brass rim, and the rest of the dining room unchanged.",
    "material": "ceramic",
    "surface": "furniture"
   },
   "is_check": false
  }
 ]
}