CREATE TABLE table_31545 ("Pick" TEXT, "Player" TEXT, "Position" TEXT, "Nationality" TEXT, "NHL team" TEXT, "College/junior/club team" TEXT)

Tell me the nationality for rudolf vercik
SELECT "Nationality" FROM table_31545 WHERE "Player" = 'rudolf vercik'
SELECT "Nationality" FROM "table_31545" WHERE "Player" = 'rudolf vercik'