Question: where are the next two winter olympics going to be held
[{'answer': 'Beijing', 'provenance': [{'wikipedia_id': '11015817', 'title': 'List of Olympic Games host cities', 'start_paragraph_id': 3, 'start_character': 108, 'end_paragraph_id': 3, 'end_character': 115, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'TBD'}, {'provenance': [{'wikipedia_id': '11015817', 'title': 'List of Olympic Games host cities', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12366343096996003176}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '961505', 'title': '2018 Winter Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['It was the first of three consecutive Olympics to be held in East Asia, the following two being Tokyo 2020 (summer) and Beijing 2022 (winter). It was the third time that an East Asian country had hosted the Winter Games, after Sapporo (1972) and Nagano (1998), both of these cities in Japan. It was also the first Winter Olympics to be held in mainland Asia.', 'It was the first of three consecutive Olympics to be held in East Asia, the following two being Tokyo 2020 (summer) and Beijing 2022 (winter).', 'It was the first of three consecutive Olympics to be held in East Asia, the following two being Tokyo 2020 (summer) and Beijing 2022 (winter).']}}]}]