Question: when is the opening ceremonies of the olympics 2018
[{'answer': '9 February 2018', 'provenance': [{'wikipedia_id': '51310933', 'title': '2018 Winter Olympics opening ceremony', 'start_paragraph_id': 1, 'start_character': 124, 'end_paragraph_id': 1, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51310933', 'title': '2018 Winter Olympics opening ceremony', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 286, 'bleu_score': 0.822857531485061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 417648090665028552}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51310933', 'title': '2018 Winter Olympics opening ceremony', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The opening ceremony of the 2018 Winter Olympics was held at the Pyeongchang Olympic Stadium in Pyeongchang, South Korea on 9 February 2018. It began at 20:00 KST and finished at approximately 22:20 KST. The Games were officially opened by President of the Republic of Korea Moon Jae-in.', 'The opening ceremony of the 2018 Winter Olympics was held at the Pyeongchang Olympic Stadium in Pyeongchang, South Korea on 9 February 2018. It began at 20:00 KST and finished at approximately 22:20 KST. The Games were officially opened by President of the Republic of Korea Moon Jae-in.', 'The opening ceremony of the 2018 Winter Olympics was held at the Pyeongchang Olympic Stadium in Pyeongchang, South Korea on 9 February 2018. It began at 20:00 KST and finished at approximately 22:20 KST. The Games were officially opened by President of the Republic of Korea Moon Jae-in.']}}]}]