```json { "table_name": "column_tags", "table_type_tags": [ {"tag": "dimension", "confidence": 0.90} ], "primary_type": "dimension", "insufficient_evidence": false, "entity": { "columns": ["id"], "unique_per_row": true }, "time_axis": null, "reasoning": "The entity id has Uniqueness 1.000 (every row unique). The timestamps created_at and updated_at are descriptive attributes recording when each tag was created/modified, not an axis ordering actions or state changes. The table catalogs classification tags applied to columns — each row is unique information about one tag assignment. No usable time axis exists for ordering entity transitions → dimension." } ```