Filter page-locator questions (300 -> 286 rows). Drops questions referencing specific pages (page N, on page X, first/cover page, page ranges) since markdown strips page boundaries.

data/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:699b3a20b21e6c5fde5dfdf5b86d5f349a1ca355d6636f6833e56672e5cf6b26
-size 32074
+oid sha256:d680b7e85c5b59e3acc33534fdfe55476b41bd02291ff9db40d9ca965924061a
+size 31224