{
    "decisions": [
        {
            "candidate_id": "refc_ebeaed4f75bcd8e7",
            "decision": "accept_with_gaps",
            "reason_codes": [
                "semantic_supported",
                "orphan_child_tuples"
            ],
            "grounds": [
                "entity_meaning",
                "row_grain"
            ],
            "cited_evidence_ids": [
                "refm_b74e0abfe6a18a69",
                "keycert_d902ee67e003e618"
            ],
            "claims": [
                {
                    "fact": "matched_distinct_tuples",
                    "value": 14837
                },
                {
                    "fact": "unmatched_distinct_tuples",
                    "value": 4178
                },
                {
                    "fact": "parent_rows",
                    "value": 14994
                },
                {
                    "fact": "max_parent_matches_per_tuple",
                    "value": 1
                }
            ],
            "rationale": "Both columns hold Brazilian zip code prefixes, a shared identifier namespace; the parent has one row per prefix (certified unique key). The geolocation table has many rows per prefix and covers prefixes with no customers, so the gaps are expected."
        }
    ],
    "suggestions": []
}