What is the nationality of the player with a pick larger than 21 from the College of the Sequoias?
CREATE TABLE "selections" (
  "draft" real,
  "round" real,
  "pick" real,
  "nationality" text,
  "college_high_school_club" text
);
SELECT "nationality" FROM "selections" WHERE "pick">21 AND "college_high_school_club"='college of the sequoias';