Question: who did not have a brain in the wizard of oz
[{'answer': 'Scarecrow', 'provenance': [{'wikipedia_id': '2864820', 'title': 'If I Only Had a Brain', 'start_paragraph_id': 1, 'start_character': 215, 'end_paragraph_id': 1, 'end_character': 224, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2864820', 'title': 'If I Only Had a Brain', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 300, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 192720703228199075}, 'section': 'Section::::"If I Only Had a Brain".\n'}]}]