Question: when was the last time the toronto maple leafs won-stanley-cup
[{'answer': '1967', 'provenance': [{'wikipedia_id': '1486684', 'title': 'List of Stanley Cup champions', 'start_paragraph_id': 26, 'start_character': 245, 'end_paragraph_id': 26, 'end_character': 249, 'bleu_score': 1.0, 'section': 'Section::::NHL champions (since 1927).\n'}]}]