```json { "table_name": "titanic", "table_type_tags": [ {"tag": "dimension", "confidence": 0.95} ], "primary_type": "dimension", "insufficient_evidence": false, "entity": { "columns": ["PassengerId"], "unique_per_row": true }, "time_axis": null, "reasoning": "PassengerId has Uniqueness 1.000 (RPUV 1.00), uniquely identifying each passenger. No time axis exists — Age, Fare, Embarked, and Survived are all attributes of the passenger at the moment of boarding, not events or state transitions. Each row is complete information about one passenger: dimension." } ```