Who is the player in guard position from Stephen F. Austin in a round less than 8?
CREATE TABLE "draft_picks" (
  "round" real,
  "pick" real,
  "player" text,
  "position" text,
  "nationality" text,
  "school_club_team" text
);
SELECT "player" FROM "draft_picks" WHERE "round"<8 AND "position"='guard' AND "school_club_team"='stephen f. austin';