What is the Nationality of the player who had Position of guard from School/Club Team Notre Dame?
CREATE TABLE "w" (
  "player" text,
  "nationality" text,
  "position" text,
  "years_for_jazz" text,
  "school_club_team" text
);
SELECT "nationality" FROM "w" WHERE "position"='guard' AND "school_club_team"='notre dame';