Question: who has won the most consecutive world series
[{'answer': 'New York Yankees', 'provenance': [{'wikipedia_id': '29404777', 'title': 'List of Major League Baseball franchise postseason streaks', 'start_paragraph_id': 2, 'start_character': 58, 'end_paragraph_id': 2, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]