Question: what was the name of the first flag for the united states
[{'answer': "`` Grand Union ''"}, {'provenance': [{'wikipedia_id': '11447', 'title': 'Flag of the United States', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 120, 'bleu_score': 0.910879922930628, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10927159912866596371}, 'section': 'Section::::History.:First flag.\n'}]}]