Question: where are sound vibrations converted into action potentials
[{'answer': 'the inner ear', 'provenance': [{'wikipedia_id': '569444', 'title': 'Transduction (physiology)', 'start_paragraph_id': 7, 'start_character': 116, 'end_paragraph_id': 7, 'end_character': 129, 'bleu_score': 1.0, 'section': 'Section::::Transduction and the senses.:The auditory system.\n'}]}, {'provenance': [{'wikipedia_id': '569444', 'title': 'Transduction (physiology)', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 802, 'bleu_score': 0.9189348797722641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14330246678444487297}, 'section': 'Section::::Transduction and the senses.:The auditory system.\n'}]}]