Question: where do the hamstrings originate as a group
[{'answer': 'posterior thigh', 'provenance': [{'wikipedia_id': '232867', 'title': 'Hamstring', 'start_paragraph_id': 1, 'start_character': 53, 'end_paragraph_id': 1, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '232867', 'title': 'Hamstring', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 554, 'bleu_score': 0.977139080690077, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13756207231860826319}, 'section': 'Section::::Structure.\n'}]}]