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Rename data/train-00003-of-00004.parquet to data/test-00003-of-00004.parquet

Rename data/train-00002-of-00004.parquet to data/test-00002-of-00004.parquet

Rename data/train-00001-of-00004.parquet to data/test-00001-of-00004.parquet

Rename data/train-00000-of-00004.parquet to data/test-00000-of-00004.parquet

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