Update duckdb index files

.gitattributes

@@ -94,3 +94,4 @@ Biochemistry_Lippincott_paraphrase_3/train/index.duckdb filter=lfs diff=lfs merg
 Gynecology_Novak_paraphrase/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Histology_Ross_paraphrase/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Immunology_Janeway_paraphrase/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Neurology_Adams_paraphrase/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Neurology_Adams_paraphrase/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a1559ef83b6f609e52c2cb77acf87403115040fb6417f0fc8a6eaab3a2670005
+size 40644608