what are all of the countries?
canada, united states, austria, japan, italy, france, australia, norway, slovenia, finland, germany, russia, switzerland, china, poland, czech republic, belgium, netherlands, spain, bulgaria, great britain, sweden
which countries won gold medals?
canada, united states, austria, japan, italy, france, australia, norway, slovenia, finland, germany, russia, switzerland, china, poland, czech republic, belgium
of those, which country won the most gold medals?
canada