Question: who wrote the music and lyrics for fiddler on the roof
[{'answer': 'music by Jerry Bock', 'provenance': [{'wikipedia_id': '89444', 'title': 'Fiddler on the Roof', 'start_paragraph_id': 1, 'start_character': 38, 'end_paragraph_id': 1, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'lyrics by Sheldon Harnick', 'provenance': [{'wikipedia_id': '89444', 'title': 'Fiddler on the Roof', 'start_paragraph_id': 1, 'start_character': 59, 'end_paragraph_id': 1, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '89444', 'title': 'Fiddler on the Roof', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 743, 'bleu_score': 0.9542431579751971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6284840014212892102}, 'section': 'Section::::Abstract.'}]}]