Question: who won last year's baseball world series
[{'answer': 'Cubs', 'provenance': [{'wikipedia_id': '46779328', 'title': '2016 World Series', 'start_paragraph_id': 1, 'start_character': 216, 'end_paragraph_id': 1, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46779328', 'title': '2016 World Series', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 619, 'bleu_score': 0.718351522064764, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16894792628086573267}, 'section': 'Section::::Abstract.'}]}]