Question: when is the world figure skating championships 2018
[{'answer': '19 -- 25 March 2018'}, {'provenance': [{'wikipedia_id': '52629453', 'title': '2018 World Figure Skating Championships', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 116, 'bleu_score': 0.7245511487202041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1641409016851188954}, 'section': 'Section::::Abstract.'}]}]