Question: when did the winter olympics start this year
[{'answer': '8 February 2018', 'provenance': [{'wikipedia_id': '961505', 'title': '2018 Winter Olympics', 'start_paragraph_id': 1, 'start_character': 318, 'end_paragraph_id': 1, 'end_character': 333, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]