Backfill masks: train-patch02-009.parquet (+7174)

data/train-patch02-009.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 117628692
+oid sha256:d7b311bd703b47f7018f5042460baff38d3163f6afe97efeb86a1b20a78d1668
+size 119564147