```json { "table_name": "2019", "table_type_tags": [ {"tag": "dimension", "confidence": 0.95} ], "primary_type": "dimension", "insufficient_evidence": false, "entity": { "columns": ["Country or region"], "unique_per_row": true }, "time_axis": null, "reasoning": "Country or region has Uniqueness 1.000 (156 unique values in 156 rows), making each row unique information about one country. Overall rank is a derived attribute ordering countries by Score. No time axis exists — the table name '2019' indicates this is one period of a series (siblings 2015-2018 exist), but the standalone table contains no timestamp column ordering observations or changes. This is a catalog of countries with their 2019 happiness metrics: dimension." } ```