Question: who did bb king tour with in 1969
[{'answer': 'Rolling Stones', 'provenance': [{'wikipedia_id': '152603', 'title': 'B.B. King', 'start_paragraph_id': 18, 'start_character': 356, 'end_paragraph_id': 18, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::Career.:1949–2005.\n'}]}, {'provenance': [{'wikipedia_id': '152603', 'title': 'B.B. King', 'start_paragraph_id': 18, 'start_character': 277, 'end_paragraph_id': 18, 'end_character': 613, 'bleu_score': 0.8796934213445811, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8726729815835938434}, 'section': 'Section::::Career.:1949–2005.\n'}]}]