Question: when was the first nfl game ever played
[{'answer': '1933', 'provenance': [{'wikipedia_id': '19333610', 'title': 'History of the National Football League', 'start_paragraph_id': 2, 'start_character': 181, 'end_paragraph_id': 2, 'end_character': 185, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19333610', 'title': 'History of the National Football League', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 859, 'bleu_score': 0.985662154730604, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15483455446147580791}, 'section': 'Section::::Abstract.'}]}]