{
  "created_utc": "2026-11-06T10:57:13.222552+00:00",
  "config_sha256": "f3d9eec9849735135b91a99bb0d00c50b8a5feea0a2b846eee472713b4ca81d4",
  "dataset_revision": "da70db2af9d09693783c3320c4249840212ee221",
  "original_counts": {
    "train": 392702,
    "validation_matched": 9815,
    "validation_mismatched": 9832
  },
  "eligible_rows": 411763,
  "conflicting_pair_hashes": 84,
  "split_sha256": {
    "train": "926dcb06afc73131fb90e69c7a1306404699b01e31d197a2d1ffaeb86f46cffa",
    "validation": "8ea3ad22ea09ccb58696ea7a7e847ba371ad9a804f00b5ef7e80dc83aa5cb982",
    "matched": "892cfc7591321c46c3177be476a6eabef1a89bbc0581183b186bfe7d59c08ae6",
    "mismatched": "cc232f28319747f00fa609bec6991183e2d561cec2f49481a5ed7b45575abd39"
  },
  "splits": {
    "train": {
      "n": 6000,
      "classes": {
        "Entailment": 2000,
        "Neutral": 2000,
        "Contradiction": 2000
      },
      "genres": {
        "telephone": 1317,
        "government": 1196,
        "fiction": 1192,
        "slate": 1164,
        "travel": 1131
      },
      "unique_premises": 5913,
      "median_pair_tokens": 37.0,
      "fraction_exceeding_256_subwords": 0.00016666666666666666
    },
    "validation": {
      "n": 999,
      "classes": {
        "Entailment": 333,
        "Neutral": 333,
        "Contradiction": 333
      },
      "genres": {
        "travel": 212,
        "slate": 209,
        "telephone": 207,
        "fiction": 188,
        "government": 183
      },
      "unique_premises": 996,
      "median_pair_tokens": 37.0,
      "fraction_exceeding_256_subwords": 0.0
    },
    "matched": {
      "n": 999,
      "classes": {
        "Entailment": 333,
        "Neutral": 333,
        "Contradiction": 333
      },
      "genres": {
        "slate": 215,
        "government": 209,
        "fiction": 205,
        "telephone": 186,
        "travel": 184
      },
      "unique_premises": 904,
      "median_pair_tokens": 35.0,
      "fraction_exceeding_256_subwords": 0.0
    },
    "mismatched": {
      "n": 999,
      "classes": {
        "Entailment": 333,
        "Neutral": 333,
        "Contradiction": 333
      },
      "genres": {
        "oup": 210,
        "nineeleven": 209,
        "verbatim": 203,
        "letters": 201,
        "facetoface": 176
      },
      "unique_premises": 906,
      "median_pair_tokens": 38.0,
      "fraction_exceeding_256_subwords": 0.0
    }
  },
  "evaluation_caveat": "Official validation pools are reserved evaluation sets for this course experiment; official hidden test results are not available.",
  "grouping": "Premise hashes, not just exact pairs, never cross train/validation/matched/mismatched boundaries."
}