What position does the player from malvern prep play?
CREATE TABLE "high_school_players_and_coaches_of_the_y" (
  "year" real,
  "player" text,
  "position" text,
  "high_school" text,
  "hometown" text,
  "mlb_draft" text
);
SELECT "position" FROM "high_school_players_and_coaches_of_the_y" WHERE "high_school"='malvern prep';