card: 300,046 SF19 rows

add stats.json

add openings.json

add summary.json

add manifest.json

add teacher.json

add data/shard_000060.parquet n=46

add data/shard_000059.parquet n=5,000

add data/shard_000058.parquet n=5,000

add data/shard_000057.parquet n=5,000

add data/shard_000056.parquet n=5,000

add data/shard_000055.parquet n=5,000

add data/shard_000054.parquet n=5,000

add data/shard_000053.parquet n=5,000

add data/shard_000052.parquet n=5,000

add data/shard_000051.parquet n=5,000

add data/shard_000050.parquet n=5,000

add data/shard_000049.parquet n=5,000

add data/shard_000048.parquet n=5,000

add data/shard_000047.parquet n=5,000

add data/shard_000046.parquet n=5,000

add data/shard_000045.parquet n=5,000

add data/shard_000044.parquet n=5,000

add data/shard_000043.parquet n=5,000

add data/shard_000042.parquet n=5,000

add data/shard_000041.parquet n=5,000

add data/shard_000040.parquet n=5,000

add data/shard_000039.parquet n=5,000

add data/shard_000038.parquet n=5,000

add data/shard_000037.parquet n=5,000

add data/shard_000036.parquet n=5,000

add data/shard_000035.parquet n=5,000

add data/shard_000034.parquet n=5,000

add data/shard_000033.parquet n=5,000

add data/shard_000032.parquet n=5,000

add data/shard_000031.parquet n=5,000

add data/shard_000030.parquet n=5,000

add data/shard_000029.parquet n=5,000

add data/shard_000028.parquet n=5,000

add data/shard_000027.parquet n=5,000

add data/shard_000026.parquet n=5,000

add data/shard_000025.parquet n=5,000

add data/shard_000024.parquet n=5,000

add data/shard_000023.parquet n=5,000

add data/shard_000022.parquet n=5,000

add data/shard_000021.parquet n=5,000

add data/shard_000020.parquet n=5,000

add data/shard_000019.parquet n=5,000

add data/shard_000018.parquet n=5,000

add data/shard_000017.parquet n=5,000