Question: when was the last time the cowboys were in the nfc championship
[{'answer': '1995', 'provenance': [{'wikipedia_id': '1585112', 'title': 'NFC Championship Game', 'start_paragraph_id': 14, 'start_character': 87, 'end_paragraph_id': 14, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::NFC Championship Game records.\n'}]}]