Question: what document marked the official beginning of the american revolution
[{'answer': 'Declaration of Independence', 'provenance': [{'wikipedia_id': '1973', 'title': 'American Revolution', 'start_paragraph_id': 54, 'start_character': 4, 'end_paragraph_id': 54, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Independence and Union.\n'}]}, {'provenance': [{'wikipedia_id': '1973', 'title': 'American Revolution', 'start_paragraph_id': 53, 'start_character': 0, 'end_paragraph_id': 53, 'end_character': 609, 'bleu_score': 0.575996774099592, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1222848281498320687}, 'section': 'Section::::Independence and Union.\n'}]}]