Question: when did the redskins go to the superbowl
[{'answer': '1972', 'provenance': [{'wikipedia_id': '33673', 'title': 'Washington Redskins', 'start_paragraph_id': 11, 'start_character': 118, 'end_paragraph_id': 11, 'end_character': 122, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:Origins and early years (1932–1945).\n'}]}, {'answer': '1982', 'provenance': [{'wikipedia_id': '33673', 'title': 'Washington Redskins', 'start_paragraph_id': 4, 'start_character': 201, 'end_paragraph_id': 4, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1983', 'provenance': [{'wikipedia_id': '33673', 'title': 'Washington Redskins', 'start_paragraph_id': 26, 'start_character': 11, 'end_paragraph_id': 26, 'end_character': 15, 'bleu_score': 1.0, 'section': "Section::::Franchise history.:Joe Gibbs' era (1981–1992).\n"}]}, {'answer': '1987', 'provenance': [{'wikipedia_id': '33673', 'title': 'Washington Redskins', 'start_paragraph_id': 31, 'start_character': 4, 'end_paragraph_id': 31, 'end_character': 8, 'bleu_score': 1.0, 'section': "Section::::Franchise history.:Joe Gibbs' era (1981–1992).\n"}]}, {'answer': '1991', 'provenance': [{'wikipedia_id': '33673', 'title': 'Washington Redskins', 'start_paragraph_id': 4, 'start_character': 210, 'end_paragraph_id': 4, 'end_character': 214, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]