{
    "decisions": [
        {
            "candidate_id": "refc_fd395ae7cfd77344",
            "decision": "reject",
            "reason_codes": [
                "role_conflict"
            ],
            "grounds": [
                "entity_meaning",
                "role_meaning"
            ],
            "cited_evidence_ids": [
                "refm_f6b7d53531647c51",
                "keycert_25fd0d00f8e5e9e7"
            ],
            "claims": [
                {
                    "fact": "matched_distinct_tuples",
                    "value": 9906
                },
                {
                    "fact": "parent_rows",
                    "value": 56046
                }
            ],
            "rationale": "Both tables hold order line items of the same sales fact, split into separate extracts, so a line in one is not a reference to a line in the other. The complete match shows the two extracts overlap on (OrderNumber, OrderLineItem), not that a child row points to a parent entity. The parent key was found only by the bounded key search, which shows no row grain."
        }
    ],
    "suggestions": []
}