Question: which is the longest muscle in human body
[{'answer': 'sartorius muscle', 'provenance': [{'wikipedia_id': '234146', 'title': 'Sartorius muscle', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '234146', 'title': 'Sartorius muscle', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 170, 'bleu_score': 0.8283995163558051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13857944100397619737}, 'section': 'Section::::Abstract.'}]}]