Question: how many stars are on the chicago flag
[{'answer': 'four', 'provenance': [{'wikipedia_id': '1213698', 'title': 'Flag of Chicago', 'start_paragraph_id': 1, 'start_character': 249, 'end_paragraph_id': 1, 'end_character': 253, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1213698', 'title': 'Flag of Chicago', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 305, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1544881214238107402}, 'section': 'Section::::Abstract.'}]}]