```json { "names": [ { "relation": "fd_fact_fec209a6b247", "decision": "name", "name": "olist_customers_dataset", "confidence": 0.98, "reason_code": "source_table_grain", "rationale": "The fact table preserves the source grain (one row per customer record) and retains the source table's own name." }, { "relation": "fd_dim_359454e15828", "decision": "name", "name": "zip_code_prefixes", "confidence": 0.92, "reason_code": "key_is_the_entity", "rationale": "One row per zip code prefix, not per city; the key is the catalogued item itself, and the city and state columns describe it." } ] } ```