Question: where do monarch butterflies go in the winter time
[{'answer': 'central Mexico', 'provenance': [{'wikipedia_id': '43794119', 'title': 'Monarch butterfly migration', 'start_paragraph_id': 2, 'start_character': 191, 'end_paragraph_id': 2, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '43794119', 'title': 'Monarch butterfly migration', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 550, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18212192852946661558}, 'section': 'Section::::Abstract.'}]}]