Question: who won the mlb world series last year
[{'answer': 'The Cubs', 'provenance': [{'wikipedia_id': '46779328', 'title': '2016 World Series', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 8, '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': 0.8205521781235771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13075289278572023254}, 'section': 'Section::::Abstract.'}]}]