Question: b.b. king is noted for what type of music
[{'answer': 'blues', 'provenance': [{'wikipedia_id': '152603', 'title': 'B.B. King', 'start_paragraph_id': 1, 'start_character': 102, 'end_paragraph_id': 1, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '152603', 'title': 'B.B. King', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4671721021893897109}, 'section': 'Section::::Abstract.'}]}]