Question: when was the last time the us military executed someone
[{'answer': '1961', 'provenance': [{'wikipedia_id': '3050186', 'title': 'Capital punishment by the United States military', 'start_paragraph_id': 4, 'start_character': 705, 'end_paragraph_id': 4, 'end_character': 709, 'bleu_score': 1.0, 'section': 'Section::::Reinstatement of the military death penalty.\n'}]}, {'provenance': [{'wikipedia_id': '3050186', 'title': 'Capital punishment by the United States military', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 709, 'bleu_score': 0.983804329702269, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2284993769571224419}, 'section': 'Section::::Reinstatement of the military death penalty.\n'}]}]