Question: when was the last time the eagles won a championship
[{'answer': '2013 season', 'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 81, 'start_character': 220, 'end_paragraph_id': 81, 'end_character': 231, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:Chip Kelly era (2013–2015).\n'}]}, {'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 82, 'start_character': 0, 'end_paragraph_id': 82, 'end_character': 1478, 'bleu_score': 0.950624202487346, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12399902949784418511}, 'section': 'Section::::Franchise history.:Chip Kelly era (2013–2015).\n'}]}]