Question: who won the first olympic gold medal in snowboarding
[{'answer': 'Canadian Ross Rebagliati', 'provenance': [{'wikipedia_id': '6642016', 'title': 'List of Olympic medalists in snowboarding', 'start_paragraph_id': 1, 'start_character': 591, 'end_paragraph_id': 1, 'end_character': 615, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6642016', 'title': 'List of Olympic medalists in snowboarding', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1256, 'bleu_score': 0.9788801082709421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13639578629392381223}, 'section': 'Section::::Abstract.'}]}]