Question: who won the mens curling in 2018 olympics
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '56026455', 'title': "Curling at the 2018 Winter Olympics – Men's tournament", 'start_paragraph_id': 2, 'start_character': 36, 'end_paragraph_id': 2, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]