Update SGExams submissions through 2026-08-15

data/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 61982369
+oid sha256:8b217ec5e9e5a0733531587098f96f29d8892062bd5e4278f1483339ba0c7e36
+size 59789965