{
    "decisions": [
        {
            "candidate_id": "refc_92d9bb6dc214e2f1",
            "decision": "reject",
            "reason_codes": [
                "role_conflict"
            ],
            "grounds": [
                "role_meaning",
                "entity_meaning"
            ],
            "cited_evidence_ids": [
                "refm_3f4df10deaa60c27",
                "keycert_1079397dfd1ff0d4"
            ],
            "claims": [
                {
                    "fact": "matched_distinct_tuples",
                    "value": 9906
                },
                {
                    "fact": "parent_rows",
                    "value": 56046
                }
            ],
            "rationale": "Both tables are sales fact tables at order-line grain, split by period. Each row is a sale line, not a reference to a line in another table. The full match means the two extracts hold overlapping copies of the same lines, which is not a foreign key. The parent key was found only by the key search and shows no row grain."
        }
    ],
    "suggestions": []
}