Question: who won olympic gold in mens figure skating 2018
[{'answer': 'Yuzuru Hanyu', 'provenance': [{'wikipedia_id': '56221004', 'title': "Figure skating at the 2018 Winter Olympics – Men's singles", 'start_paragraph_id': 4, 'start_character': 46, 'end_paragraph_id': 4, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Summary.\n'}]}]