Question: how many theaters are in the kennedy center
[{'answer': 'three', 'provenance': [{'wikipedia_id': '380569', 'title': 'John F. Kennedy Center for the Performing Arts', 'start_paragraph_id': 12, 'start_character': 203, 'end_paragraph_id': 12, 'end_character': 208, 'bleu_score': 1.0, 'section': 'Section::::History.:Fundraising.\n'}]}, {'provenance': [{'wikipedia_id': '380569', 'title': 'John F. Kennedy Center for the Performing Arts', 'start_paragraph_id': 24, 'start_character': 0, 'end_paragraph_id': 24, 'end_character': 105, 'bleu_score': 0.8852140475440831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 880943445134927449}, 'section': 'Section::::Venues.\n'}]}]