Question: how many times has stephen curry won the mvp award
[{'answer': '2', 'provenance': [{'wikipedia_id': '5608488', 'title': 'Stephen Curry', 'start_paragraph_id': 2, 'start_character': 3, 'end_paragraph_id': 2, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]