user: Question: What nationality is Rod Langway?
Columns: ['Round', 'Player', 'Position', 'Nationality', 'College/junior/club team (League)']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Mark Napier', '(RW)', 'Canada', 'Toronto Marlboros ( OHL )']
SQL:

assistant: SELECT COUNT("Nationality") FROM "Table" WHERE "Player" = 'Rod Langway';