Question: first blues artist to play the electric guitar
[{'answer': 'T - Bone Walker', 'provenance': [{'wikipedia_id': '172351', 'title': 'Electric blues', 'start_paragraph_id': 18, 'start_character': 212, 'end_paragraph_id': 18, 'end_character': 229, 'bleu_score': 1.0, 'section': 'Section::::Electric Texas blues.\n'}]}, {'provenance': [{'wikipedia_id': '172351', 'title': 'Electric blues', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 813, 'bleu_score': 0.9661808264736941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 779914187413855246}, 'section': 'Section::::Abstract.'}]}]