Question: what are freshmen called at the air force academy
[{'answer': 'Fourth class cadets', 'provenance': [{'wikipedia_id': '77587', 'title': 'United States Air Force Academy', 'start_paragraph_id': 49, 'start_character': 333, 'end_paragraph_id': 49, 'end_character': 352, 'bleu_score': 1.0, 'section': 'Section::::Organization.:The Cadet Wing.\n'}]}, {'answer': 'doolies', 'provenance': [{'wikipedia_id': '77587', 'title': 'United States Air Force Academy', 'start_paragraph_id': 49, 'start_character': 390, 'end_paragraph_id': 49, 'end_character': 397, 'bleu_score': 1.0, 'section': 'Section::::Organization.:The Cadet Wing.\n'}]}, {'answer': '4 degrees', 'provenance': [{'wikipedia_id': '77587', 'title': 'United States Air Force Academy', 'start_paragraph_id': 49, 'start_character': 543, 'end_paragraph_id': 49, 'end_character': 552, 'bleu_score': 1.0, 'section': 'Section::::Organization.:The Cadet Wing.\n'}]}, {'provenance': [{'wikipedia_id': '77587', 'title': 'United States Air Force Academy', 'start_paragraph_id': 49, 'start_character': 0, 'end_paragraph_id': 49, 'end_character': 904, 'bleu_score': 0.9566091336550111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4396788629324501988}, 'section': 'Section::::Organization.:The Cadet Wing.\n'}]}]