```json { "table_name": "2016_WEEK 13_plays", "primary_key": null, "candidates": [ { "rank": 0, "partition_key": "TeamWithPossession", "partition_key_label": "E", "partition_key_reasoning": "TeamWithPossession is the primary entity in this event table. RPUV = 83.83 (30 unique teams across 2,515 plays) provides excellent partitioning granularity. Top 3 coverage = 11.73% ensures balanced distribution. Semantically, this groups all plays by the team executing them, which is the natural analytical perspective for play-by-play data.", "clustering_key": "PlayNumberInDrive", "clustering_key_label": "S", "clustering_key_reasoning": "PlayNumberInDrive is the sequence axis identified by the classifier. Monotonicity = 0.865 confirms strong sequential ordering. This column orders plays within each team's possessions chronologically (1-22 range), enabling temporal analysis of drive progression.", "world_line": "TeamWithPossession", "session_column": "DriveNumber", "confidence": "HIGH", "notes": "This is the primary perspective: partition by the team executing plays, ordered by play sequence. DriveNumber serves as a natural session boundary within each team's timeline. Alternative perspectives by AwayTeam or HomeTeam are less useful because TeamWithPossession already captures the active entity per play." } ] } ```