Question: when did the detroit lions last won a championship
[{'answer': '1957', 'provenance': [{'wikipedia_id': '8577', 'title': 'Detroit Lions', 'start_paragraph_id': 3, 'start_character': 143, 'end_paragraph_id': 3, 'end_character': 147, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8577', 'title': 'Detroit Lions', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 341, 'bleu_score': 0.9250392488272071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3610875426129737714}, 'section': 'Section::::Abstract.'}]}]