Question: who is going to host the 2018 winter olympics
[{'answer': 'South Korea', 'provenance': [{'wikipedia_id': '961505', 'title': '2018 Winter Olympics', 'start_paragraph_id': 1, 'start_character': 254, 'end_paragraph_id': 1, 'end_character': 265, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Pyeongchang County , South Korea'}, {'provenance': [{'wikipedia_id': '56359417', 'title': 'Korea at the 2018 Winter Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['A unified team of South Korea and North Korea competed under the title "Korea" at the 2018 Winter Olympics in ice hockey.', 'A unified team of South Korea and North Korea competed under the title "Korea" at the 2018 Winter Olympics in ice hockey.']}}]}]