user: Question: What is the Nationality when the club team is Peterborough Petes (OHL)?
Columns: ['Round', 'Overall', 'Player', 'Position', 'Nationality', 'Club team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '6', 'Mika Zibanejad', 'Centre', 'Sweden', 'Djurgårdens IF Hockey (SEL)']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Club team" = 'Peterborough Petes (OHL)';