Question: who won the gold in men's curling at the olympics
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '5830204', 'title': 'List of Olympic medalists in curling', 'start_paragraph_id': 3, 'start_character': 430, 'end_paragraph_id': 3, 'end_character': 443, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]