Question: who is the most winning team in ipl
[{'answer': 'Mumbai Indians', 'provenance': [{'wikipedia_id': '22962745', 'title': 'List of Indian Premier League records and statistics', 'start_paragraph_id': 3, 'start_character': 268, 'end_paragraph_id': 3, 'end_character': 282, 'bleu_score': 1.0, 'section': 'Section::::Team Performance.\n'}]}]