Question: when did the cubs win in back to the future
[{'answer': '2015', 'provenance': [{'wikipedia_id': '213270', 'title': 'Back to the Future Part II', 'start_paragraph_id': 1, 'start_character': 434, 'end_paragraph_id': 1, 'end_character': 438, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '213270', 'title': 'Back to the Future Part II', 'start_paragraph_id': 44, 'start_character': 96, 'end_paragraph_id': 44, 'end_character': 1431, 'bleu_score': 0.787967702638646, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13999750712597485822}, 'section': 'Section::::Depiction of the future.\n'}]}]