Question: who wrote bach toccata and fugue in d minor
[{'answer': 'Johann Sebastian Bach', 'provenance': [{'wikipedia_id': '295768', 'title': 'Toccata and Fugue in D minor, BWV 565', 'start_paragraph_id': 1, 'start_character': 121, 'end_paragraph_id': 1, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '295768', 'title': 'Toccata and Fugue in D minor, BWV 565', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 0.9632870032952191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7509305796437125557}, 'section': 'Section::::Abstract.'}]}]