Question: who wrote the song if i were a rich man
[{'answer': 'Sheldon Harnick', 'provenance': [{'wikipedia_id': '3146974', 'title': 'If I Were a Rich Man (song)', 'start_paragraph_id': 1, 'start_character': 101, 'end_paragraph_id': 1, 'end_character': 116, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Jerry Bock', 'provenance': [{'wikipedia_id': '3146974', 'title': 'If I Were a Rich Man (song)', 'start_paragraph_id': 1, 'start_character': 121, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3146974', 'title': 'If I Were a Rich Man (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 232, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10977624260590567413}, 'section': 'Section::::Abstract.'}]}]