{
  "subset_name": "countix_compat_all",
  "mapping_rule": "Union of RepCountA Lance splits: train + validation + test (no extra filtering).",
  "total_rows": 1041,
  "split_counts": {
    "train": 758,
    "validation": 131,
    "test": 152
  },
  "files": {
    "manifest_tsv": "subsets/countix_compat_all.tsv",
    "video_ids_tsv": "subsets/countix_compat_video_ids.tsv",
    "qa_tsv": "subsets/countix_compat_qa.tsv",
    "qa_valid_tsv": "subsets/countix_compat_qa_valid.tsv",
    "qa_invalid_tsv": "subsets/countix_compat_qa_invalid.tsv"
  },
  "qa_rows": 1041,
  "qa_missing_target_rows": 1,
  "qa_valid_rows": 1040,
  "qa_invalid_rows": 1,
  "validation_rule": "valid row requires non-empty video_id/split/count/question/answer/lance_uri and video_id exists in referenced Lance split"
}