Update duckdb index files

vasugoel--K-12Corpus/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:bb996a0d10be4675be20a8d348bb3721c375616def196fb375b7e69dc574c528
-size 72101888
+oid sha256:e2d7fa1e1c2d00f28aa6cbe16f19fe07263bb28324be11fda8f352ce6592524c
+size 71577600