```json {"classifications": [{"column": "Season", "label": "none", "confidence": 1.0, "reason": "Single value column, not a key."}, {"column": "Week", "label": "none", "confidence": 1.0, "reason": "Single value column, not a key."}, {"column": "GameSlot", "label": "none", "confidence": 1.0, "reason": "Low cardinality categorical column."}, {"column": "Date", "label": "none", "confidence": 1.0, "reason": "Low cardinality date string column."}, {"column": "AwayTeam", "label": "none", "confidence": 0.8, "reason": "Team abbreviation, low cardinality, acts as categorical data."}, {"column": "HomeTeam", "label": "none", "confidence": 0.8, "reason": "Team abbreviation, low cardinality, acts as categorical data."}, {"column": "Quarter", "label": "none", "confidence": 1.0, "reason": "Low cardinality categorical column."}, {"column": "DriveNumber", "label": "none", "confidence": 1.0, "reason": "Low cardinality numeric column."}, {"column": "TeamWithPossession", "label": "none", "confidence": 0.8, "reason": "Team name, low cardinality, acts as categorical data."}, {"column": "IsScoringDrive", "label": "none", "confidence": 1.0, "reason": "Boolean indicator column."}, {"column": "PlayNumberInDrive", "label": "none", "confidence": 1.0, "reason": "Low cardinality numeric column."}, {"column": "IsScoringPlay", "label": "none", "confidence": 1.0, "reason": "Boolean indicator column."}, {"column": "PlayOutcome", "label": "none", "confidence": 1.0, "reason": "Categorical play outcome description."}, {"column": "PlayStart", "label": "none", "confidence": 1.0, "reason": "Play context string, not unique enough to be a key."}, {"column": "PlayTimeFormation", "label": "none", "confidence": 1.0, "reason": "Play context string, not unique enough to be a key."}, {"column": "PlayDescription", "label": "near_key", "confidence": 0.9, "reason": "Highly distinct (>=98%) text description, though not a formal primary key."}]} ```