Question: when did the 13 colonies join the union
[{'answer': 'July 1776', 'provenance': [{'wikipedia_id': '497704', 'title': 'List of U.S. states by date of admission to the Union', 'start_paragraph_id': 5, 'start_character': 118, 'end_paragraph_id': 5, 'end_character': 127, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '497704', 'title': 'List of U.S. states by date of admission to the Union', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 630, 'bleu_score': 0.9808590314834971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9713208960472819927}, 'section': 'Section::::Abstract.'}]}]