Question: how many times were the chennai super kings ipl champions *
[{'answer': '3', 'provenance': [{'wikipedia_id': '15829930', 'title': 'Chennai Super Kings', 'start_paragraph_id': 1, 'start_character': 360, 'end_paragraph_id': 1, 'end_character': 361, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]