Question: who won the most gold medals in the winter olympics 2018
[{'answer': 'Norway', 'provenance': [{'wikipedia_id': '51310942', 'title': '2018 Winter Olympics medal table', 'start_paragraph_id': 2, 'start_character': 87, 'end_paragraph_id': 2, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]