Set platinum_target of rejected questions to None (singleop)

README.md

@@ -319,10 +319,10 @@ dataset_info:
     dtype: string
   splits:
   - name: test
-    num_bytes: 118951
+    num_bytes: 118922
     num_examples: 159
-  download_size: 44992
-  dataset_size: 118951
+  download_size: 45006
+  dataset_size: 118922
 - config_name: singleq
   features:
   - name: cleaning_status

singleop/test-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b08897b1b938241c4e47e2572227958a8ba1fc33f0b6d42e736401b69666c68f
-size 44992
+oid sha256:30055dada4f72e657ae9bf808b951b6298433aa6ee96ab9ef2c2ef3f3ca23acf
+size 45006