Question: what is bb king's guitar's name
[{'answer': 'Lucille', 'provenance': [{'wikipedia_id': '6738005', 'title': 'Lucille (guitar)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6738005', 'title': 'Lucille (guitar)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 115, 'bleu_score': 0.7871773473399101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15765012679598616558}, 'section': 'Section::::Abstract.'}]}]