Question: what is the origin and insertion of the semimembranosus
[{'answer': 'Ischial tuberosity', 'provenance': [{'wikipedia_id': '3042881', 'title': 'Semimembranosus muscle', 'start_paragraph_id': 4, 'start_character': 46, 'end_paragraph_id': 4, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Structure.\n'}]}, {'answer': 'Medial condyle of tibia'}]