Question: who is hosting the winter olympics in 2022
[{'answer': 'Beijing', 'provenance': [{'wikipedia_id': '8351234', 'title': '2022 Winter Olympics', 'start_paragraph_id': 1, 'start_character': 104, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]