Question: when was the last time the eagles were on the superbowl
[{'answer': '2017', 'provenance': [{'wikipedia_id': '685010', 'title': 'Super Bowl XXXIX', 'start_paragraph_id': 80, 'start_character': 258, 'end_paragraph_id': 80, 'end_character': 262, 'bleu_score': 1.0, 'section': 'Section::::Aftermath.\n'}]}]