Question: where does the head of the rib attach
[{'answer': 'the spine'}, {'provenance': [{'wikipedia_id': '57174', 'title': 'Rib cage', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 662, 'bleu_score': 0.610669256811558, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11204689522276947832}, 'section': 'Section::::Structure.:Parts of rib.\n'}]}]