Question: who won the world baseball classic this year
[{'answer': 'The United States', 'provenance': [{'wikipedia_id': '4458752', 'title': '2017 World Baseball Classic', 'start_paragraph_id': 3, 'start_character': 169, 'end_paragraph_id': 3, 'end_character': 186, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4458752', 'title': '2017 World Baseball Classic', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 415, 'bleu_score': 0.8653582101046641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10346294911599931853}, 'section': 'Section::::Abstract.'}]}]