{
  "diagnostic": "Represent the entire observed56-vector as q*v withq=1",
  "rank": 1,
  "stored_coefficients": 56,
  "reason_not_preferred": "This stores every output value in the rule and therefore explains none of the source repetitions. Rank alone ignores rule, mask and exception cost.",
  "comparison": "The structured model retains baseline values and simple named shared-amplitude masks; no numerical scoring weights or unique-best-model claim is assigned."
}