Question: what does nco stand for in the military
[{'answer': 'non-commissioned officer', 'provenance': [{'wikipedia_id': '166680', 'title': 'Non-commissioned officer', 'start_paragraph_id': 1, 'start_character': 2, 'end_paragraph_id': 1, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '166680', 'title': 'Non-commissioned officer', 'start_paragraph_id': 1, 'start_character': 6, 'end_paragraph_id': 1, 'end_character': 483, 'bleu_score': 0.8673460629331771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7700720515258014940}, 'section': 'Section::::Abstract.'}]}]