Question: how many times have the new york mets won the world series
[{'answer': '2', 'provenance': [{'wikipedia_id': '21728', 'title': 'New York Mets', 'start_paragraph_id': 2, 'start_character': 69, 'end_paragraph_id': 2, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]