Question: who sang mama look sharp in 1776 movie
[{'answer': 'Courier', 'provenance': [{'wikipedia_id': '11600033', 'title': '1776 (film)', 'start_paragraph_id': 37, 'start_character': 30, 'end_paragraph_id': 37, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'McNair', 'provenance': [{'wikipedia_id': '11600033', 'title': '1776 (film)', 'start_paragraph_id': 36, 'start_character': 36, 'end_paragraph_id': 36, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Leather Apron', 'provenance': [{'wikipedia_id': '11600033', 'title': '1776 (film)', 'start_paragraph_id': 48, 'start_character': 52, 'end_paragraph_id': 48, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Musical numbers and soundtrack.\n'}]}, {'provenance': [{'wikipedia_id': '11600033', 'title': '1776 (film)', 'start_paragraph_id': 48, 'start_character': 0, 'end_paragraph_id': 48, 'end_character': 65, 'bleu_score': 0.587394909469921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5873880341690085627}, 'section': 'Section::::Musical numbers and soundtrack.\n'}]}]