Question: who set off a wave of controversy with his performance at the 1965 newport folk festival
[{'answer': 'Bob Dylan', 'provenance': [{'wikipedia_id': '8931608', 'title': 'Electric Dylan controversy', 'start_paragraph_id': 1, 'start_character': 9, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8931608', 'title': 'Electric Dylan controversy', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 813, 'bleu_score': 0.540392448223454, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14055930175438643464}, 'section': 'Section::::Abstract.'}]}]