Question: when did the wichita state football team plane crash
[{'answer': 'October 2 , 1970', 'provenance': [{'wikipedia_id': '9840548', 'title': 'Wichita State University football team plane crash', 'start_paragraph_id': 4, 'start_character': 545, 'end_paragraph_id': 4, 'end_character': 561, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '9840548', 'title': 'Wichita State University football team plane crash', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 377, 'bleu_score': 0.921555793996895, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9973060350789074150}, 'section': 'Section::::Abstract.'}]}]