Question: are radio waves electromagnetic waves or sound waves
[{'answer': 'electromagnetic', 'provenance': [{'wikipedia_id': '98132', 'title': 'Radio wave', 'start_paragraph_id': 1, 'start_character': 26, 'end_paragraph_id': 1, 'end_character': 41, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '98132', 'title': 'Radio wave', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 559, 'bleu_score': 0.9776501033621461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5554431278922937886}, 'section': 'Section::::Abstract.'}]}]