Update duckdb index files

.gitattributes

@@ -11,3 +11,4 @@ Multihop_Composition/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Object_Comparison/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Object_Comparison/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Property_Conjunction/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Property_Conjunction/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Property_Conjunction/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb74c1750227986457fb525774590a73b31129b3f1a4826526c2122ed2d13542
+size 1323008