Question: who won the world series in 2015 baseball
[{'answer': 'Kansas City Royals', 'provenance': [{'wikipedia_id': '40627800', 'title': '2015 World Series', 'start_paragraph_id': 1, 'start_character': 260, 'end_paragraph_id': 1, 'end_character': 278, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '40627800', 'title': '2015 World Series', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 837, 'bleu_score': 0.9864398934896761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10353271949987805904}, 'section': 'Section::::Abstract.'}]}]