user: Question: Which nationality is player John Garrett?
Columns: ['Pick #', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [4.0, 'Gene Carr', 'Centre', 'Canada', 'St. Louis Blues', 'Flin Flon Bombers ( WCHL )']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Player" = 'John Garrett';