{
    "decisions": [
        {
            "candidate_id": "refc_33d152b9e177122c",
            "decision": "reject",
            "reason_codes": [
                "coincidental_overlap"
            ],
            "grounds": [
                "entity_meaning",
                "role_meaning"
            ],
            "cited_evidence_ids": [
                "refm_b1a94976781f8c70",
                "keycert_ed7ab641a6fffb76"
            ],
            "claims": [
                {
                    "fact": "distinct_eligible_tuples",
                    "value": 998
                },
                {
                    "fact": "parent_rows",
                    "value": 2000
                }
            ],
            "rationale": "cvv is a 3-digit card security code, not a user identifier. Its values (e.g. 866, 396, 422) fall within the 0..1999 range of users_data.id only by numeric coincidence; the client_id column is the real user reference."
        },
        {
            "candidate_id": "refc_e29fda54b3852f79",
            "decision": "reject",
            "reason_codes": [
                "coincidental_overlap"
            ],
            "grounds": [
                "entity_meaning",
                "role_meaning"
            ],
            "cited_evidence_ids": [
                "refm_69be309cee5c1c7e",
                "keycert_389bb5ce15d51d6a"
            ],
            "claims": [
                {
                    "fact": "distinct_eligible_tuples",
                    "value": 998
                },
                {
                    "fact": "parent_rows",
                    "value": 6146
                }
            ],
            "rationale": "cvv is a card security code and not a pointer to another card row. Its overlap with cards_data.id (a 0..N row number) is numeric coincidence, and a card's own cvv has no meaning as a reference to a card."
        }
    ],
    "suggestions": [
        {
            "child": "source:raw.cards_data",
            "child_columns": [
                "client_id"
            ],
            "parent": "source:raw.users_data",
            "parent_columns": [
                "id"
            ]
        }
    ]
}