Question: how many football players are in a team
[{'answer': '11', 'provenance': [{'wikipedia_id': '18951490', 'title': 'American football', 'start_paragraph_id': 9, 'start_character': 1001, 'end_paragraph_id': 9, 'end_character': 1003, 'bleu_score': 1.0, 'section': 'Section::::History.:Early history.\n'}]}]