Question: when did the eagles go to super bowl
[{'answer': '1948', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 1, 'start_character': 414, 'end_paragraph_id': 1, 'end_character': 418, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1949', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 1, 'start_character': 420, 'end_paragraph_id': 1, 'end_character': 424, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1960', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 1, 'start_character': 430, 'end_paragraph_id': 1, 'end_character': 434, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '2017', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 1, 'start_character': 250, 'end_paragraph_id': 1, 'end_character': 254, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]