Question: when was the fire that destroyed military records
[{'answer': 'July 12 , 1973', 'provenance': [{'wikipedia_id': '702033', 'title': 'National Personnel Records Center fire', 'start_paragraph_id': 8, 'start_character': 18, 'end_paragraph_id': 8, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::Fire.\n'}]}, {'provenance': [{'wikipedia_id': '702033', 'title': 'National Personnel Records Center fire', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 528, 'bleu_score': 0.8132572385059641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7071038335614141522}, 'section': 'Section::::Abstract.'}]}]