Question: who won three stanley cups in a row
[{'answer': 'Toronto Maple Leafs', 'provenance': [{'wikipedia_id': '1486684', 'title': 'List of Stanley Cup champions', 'start_paragraph_id': 50, 'start_character': 45, 'end_paragraph_id': 50, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Appearances.:Stanley Cup Finals era (since 1915).:Defunct teams.\n'}]}, {'answer': 'Montreal Canadiens', 'provenance': [{'wikipedia_id': '1486684', 'title': 'List of Stanley Cup champions', 'start_paragraph_id': 2, 'start_character': 205, 'end_paragraph_id': 2, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'New York Islanders'}, {'provenance': [{'wikipedia_id': '1486684', 'title': 'List of Stanley Cup champions', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16128958479928692213}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1486684', 'title': 'List of Stanley Cup champions', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['From 1914 to the end of the 2019 season, the trophy has been won 101 times. 25 teams have won the cup, 20 of which are still active in the NHL. Prior to that, the challenge cup was held by nine teams. The Montreal Canadiens have won the Stanley Cup 24 times and made the finals an additional ten times. There were two years when the Stanley Cup was not awarded: 1919, because of the Spanish flu epidemic, and 2005, because of the NHL lockout.', 'The Montreal Canadiens have won the Stanley Cup 24 times and made the finals an additional ten times. There were two years when the Stanley Cup was not awarded: 1919, because of the Spanish flu epidemic, and 2005, because of the NHL lockout.']}}]}]