Question: who was on the mound when the cubs won the world series
[{'answer': 'Mike Montgomery', 'provenance': [{'wikipedia_id': '46779328', 'title': '2016 World Series', 'start_paragraph_id': 21, 'start_character': 337, 'end_paragraph_id': 21, 'end_character': 352, 'bleu_score': 1.0, 'section': 'Section::::Game summaries.:Game 2.\n'}]}]