Question: where did the term rock and roll originate
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '944646', 'title': 'Origins of rock and roll', 'start_paragraph_id': 1, 'start_character': 56, 'end_paragraph_id': 1, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '944646', 'title': 'Origins of rock and roll', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 464, 'bleu_score': 0.9751504244977051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12241233582263101141}, 'section': 'Section::::Abstract.'}]}]