CREATE TABLE table_54109 ("Round" FLOAT, "Player" TEXT, "Nationality" TEXT, "NHL team" TEXT, "College/junior/club team  ( league ) " TEXT)

What is the nationality of the player who played for the Peterborough Petes (OHL)?
SELECT "Nationality" FROM table_54109 WHERE "College/junior/club team (league)" = 'peterborough petes (ohl)'
SELECT "Nationality" FROM "table_54109" WHERE "College/junior/club team (league)" = 'peterborough petes (ohl)'