Question: who won the champions league twenty20 in 2013
[{'answer': 'Mumbai Indians', 'provenance': [{'wikipedia_id': '38254549', 'title': '2013 Champions League Twenty20', 'start_paragraph_id': 2, 'start_character': 161, 'end_paragraph_id': 2, 'end_character': 175, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '38254549', 'title': '2013 Champions League Twenty20', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 267, 'bleu_score': 0.9042878500265971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17154313223372810037}, 'section': 'Section::::Abstract.'}]}]