{
  "schema": "eval_task_templates_v1",
  "tasks": {
    "H0": "image-only answer; no cross-concept hint",
    "H1": "image answer with generic cross-concept hint",
    "H4": "image answer with candidate choices",
    "E0": "free answer plus structured explanation",
    "E1": "gold answer provided; structured explanation only"
  }
}