Question: when was the last time we had a 5 star general
[{'answer': '1981', 'provenance': [{'wikipedia_id': '6888786', 'title': 'Five-star rank', 'start_paragraph_id': 62, 'start_character': 340, 'end_paragraph_id': 62, 'end_character': 344, 'bleu_score': 1.0, 'section': 'Section::::U.S. five-star ranks.\n'}]}, {'provenance': [{'wikipedia_id': '6888786', 'title': 'Five-star rank', 'start_paragraph_id': 62, 'start_character': 0, 'end_paragraph_id': 62, 'end_character': 393, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7408258792477525752}, 'section': 'Section::::U.S. five-star ranks.\n'}]}]