Update parquet files

default/test/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:74904bacd381f30832c795b3c80a57942e332aac081f67f517a799fc8469a984
-size 101702376
+oid sha256:6b24df3ba8608eb5cfc792b3ffcb69431777cfd6bcd75a6c7f74a9132facb0c3
+size 28541757

default/{train → train50}/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6f158ca09b24bf3afae7a585cd4eaf5621b124020df2a50509e9d662a0b3fe0f
-size 19234889
+oid sha256:027e26d2c98f800e278f4a08807885e4121cf156eff25ff930b4583a6f03d209
+size 11075747