Question: when did the college football hall of fame open
[{'answer': '1951', 'provenance': [{'wikipedia_id': '1117944', 'title': 'College Football Hall of Fame', 'start_paragraph_id': 1, 'start_character': 167, 'end_paragraph_id': 1, 'end_character': 171, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1117944', 'title': 'College Football Hall of Fame', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 230, 'bleu_score': 0.803333163928579, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3916790266930681074}, 'section': 'Section::::Abstract.'}]}]