user: Question: What country did Chris Witty represent?
Columns: ['Event', 'Time', 'Name', 'Nation', 'Games', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['500 metres', '37.30', 'Catriona Le May Doan', 'Canada (CAN)', '2002 Salt Lake City', '13 February 2002']
SQL:

assistant: SELECT "Nation" FROM "Table" WHERE "Name" = 'Chris Witty';