Question: what part of the cow is flat iron steak
[{'answer': 'shoulder', 'provenance': [{'wikipedia_id': '1582531', 'title': 'Flat iron steak', 'start_paragraph_id': 1, 'start_character': 139, 'end_paragraph_id': 1, 'end_character': 147, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1582531', 'title': 'Flat iron steak', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 519, 'bleu_score': 0.9792717993254391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14433762055008347750}, 'section': 'Section::::Abstract.'}]}]