Update parquet files

default/train_50_first/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:7b0b7cf5cc1e9db820d9e32a245ca6110288cd6abf7b285773b7e743a628b648
-size 1633409
+oid sha256:ead670395b301e6534244367b4275317506c478d6820461c71bdd244930f349e
+size 2678306

default/train_50_second/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9b22c9536a0fc5960883faa8600168a801b6aefa49ba1cb74ccc43750cba0bf6
-size 1629746
+oid sha256:1d6ebd6d1785fad187c3cc612bc9add28c2980b56aa31cadc66bd1ec52391aad
+size 2690362