Question: how many times csk play final in ipl
[{'answer': 'seven', 'provenance': [{'wikipedia_id': '15829930', 'title': 'Chennai Super Kings', 'start_paragraph_id': 10, 'start_character': 108, 'end_paragraph_id': 10, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Team history.:2010: IPL and CLT20 double.\n'}]}, {'provenance': [{'wikipedia_id': '15829930', 'title': 'Chennai Super Kings', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 569, 'bleu_score': 0.526735787498222, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14726980818012248522}, 'section': 'Section::::Abstract.'}]}]