{
    "decisions": [
        {
            "candidate_id": "refc_298becbe988e3f8a",
            "decision": "reject",
            "reason_codes": [
                "coincidental_overlap",
                "role_conflict"
            ],
            "grounds": [
                "entity_meaning",
                "role_meaning",
                "example_values"
            ],
            "cited_evidence_ids": [
                "refm_541993cfa3bbc228",
                "exm_16dc3d0fedc36dd3",
                "exm_dc1851a948212227"
            ],
            "claims": [
                {
                    "fact": "distinct_eligible_tuples",
                    "value": 109
                },
                {
                    "fact": "matched_distinct_tuples",
                    "value": 67
                },
                {
                    "fact": "unmatched_distinct_tuples",
                    "value": 42
                }
            ],
            "rationale": "mcc is a merchant category code (e.g. 4121, 5499) and card_id identifies a card; they are different entity namespaces. The overlap of small integer values is coincidental, and 42 of 109 distinct mcc values have no matching card_id."
        }
    ],
    "suggestions": []
}