Question: what bone allows the head to nod yes
[{'answer': 'atlas', 'provenance': [{'wikipedia_id': '47430', 'title': 'Atlas (anatomy)', 'start_paragraph_id': 1, 'start_character': 16, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'axis', 'provenance': [{'wikipedia_id': '47430', 'title': 'Atlas (anatomy)', 'start_paragraph_id': 3, 'start_character': 47, 'end_paragraph_id': 3, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47430', 'title': 'Atlas (anatomy)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 264, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17973173994028677642}, 'section': 'Section::::Abstract.'}]}]