Question: who won the womens world curling championships 2018
[{'answer': 'Canada', 'provenance': [{'wikipedia_id': '55854836', 'title': "2018 World Women's Curling Championship", 'start_paragraph_id': 1, 'start_character': 213, 'end_paragraph_id': 1, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]