{
  "schema_version": "v0",
  "experiment_id": "EXP1-nursery",
  "question": "Do candidate representations recover known constructed structure, and how much of recovery is carried by labels?",
  "hypothesis": "see frozen predictions",
  "inputs": "6 shapes x 3 renderings, ground truth known",
  "instruments": [
    "qwen",
    "mistral"
  ],
  "types": [
    "relgraph_v0",
    "eventseq_v0"
  ],
  "controls": "cross-shape confusion (every parse scored against every ground truth); designed near-miss family cycle3/feedback3/inversion",
  "perturbations": "noun anonymization on prose renderings (EXP2-lite)",
  "evaluation": "structure-only WL top-1 recovery; GED edit scripts as loss vectors; degradation under label destruction",
  "defined_at": "2026-08-21T09:58:00-0700"
}