Update README.md

README.md

@@ -29,7 +29,7 @@ For each image, we choose to add (1) 3 non-exist objects and (2) 1 non-exist att
 
 In the original qa dataset, VG has Object Counting questions, we also include them here, with the 'orig_qa'=='Yes'. For those negative questions we generated, 'orig_qa' =='No'.
 ```json
-{'img_id': str, 'orig_qa': Yes/No, 'question_text': 'How many <attribute> <object in plural form> are there? ', 'answer_text': Numbers. or None. }
+{'img_id': str, 'orig_qa': Yes/No, 'question_text': 'How many <attribute> <object in plural form> are there? ', 'answer_text': Numbers.(if exist) or None.(if non-exist) }
 ```
 For more details, plz refer to the dataset.