Question: where is the femur located on the body
[{'answer': 'thigh bone', 'provenance': [{'wikipedia_id': '188497', 'title': 'Femur', 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'closest to the hip joint'}, {'provenance': [{'wikipedia_id': '188497', 'title': 'Femur', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 425, 'bleu_score': 0.5233682125156031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2982766936463558539}, 'section': 'Section::::Abstract.'}]}]