Question: what does pt stand for in the army
[{'answer': 'physical training', 'provenance': [{'wikipedia_id': '4722244', 'title': 'Physical training uniform', 'start_paragraph_id': 1, 'start_character': 2, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4722244', 'title': 'Physical training uniform', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 731, 'bleu_score': 0.89370191086512, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11466818535669688459}, 'section': 'Section::::Abstract.'}]}]