Which Driver has a Sponsor of pdvsa?
CREATE TABLE "team_and_driver_lineup_prior_to_unificat" (
  "team" text,
  "no_num" real,
  "driver_s" text,
  "sponsor_s" text,
  "test_drivers" text
);
SELECT "driver_s" FROM "team_and_driver_lineup_prior_to_unificat" WHERE "sponsor_s"='pdvsa';