Question: when did the eagles win the nfc championship
[{'answer': '1980', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 48, 'start_character': 3, 'end_paragraph_id': 48, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:Vermeil and Campbell era (1976–1985).\n'}]}, {'answer': '1980 , 2004 , 2017'}]