Question: when was the first super bowl the eagles ever won
[{'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': '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.'}]}, {'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 365, 'bleu_score': 0.674968758058559, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4881615666335400644}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23339', 'title': 'Philadelphia Eagles', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['their first Super Bowl win in franchise history and their fourth NFL title overall, after winning the Championship Game in 1948,', "The Philadelphia Eagles are a professional American football team based in Philadelphia, Pennsylvania. The Eagles compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) East division. In the 2017 season the team won Super Bowl LII, their first Super Bowl win in franchise history and their fourth NFL title overall, after winning the Championship Game in 1948, 1949, and 1960.", 'In the 2017 season the team won Super Bowl LII, their first Super Bowl win in franchise history and their fourth NFL title overall, after winning the Championship Game in 1948, 1949, and 1960.']}}]}]