Question: when did the us flag have 45 stars
[{'answer': '1896', 'provenance': [{'wikipedia_id': '8872619', 'title': 'Timeline of the flag of the United States', 'start_paragraph_id': 32, 'start_character': 12, 'end_paragraph_id': 32, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8872619', 'title': 'Timeline of the flag of the United States', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 43, 'bleu_score': 0.6803749333171201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9981530833839695291}, 'section': 'Section::::Abstract.'}]}]