Question: who has won the most commander in chief trophies
[{'answer': 'Air Force', 'provenance': [{'wikipedia_id': '1850339', 'title': "Commander-in-Chief's Trophy", 'start_paragraph_id': 1, 'start_character': 225, 'end_paragraph_id': 1, 'end_character': 234, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]