What is the pole position of the Hungarian Grand Prix?
CREATE TABLE "grands_prix" (
  "round" real,
  "grand_prix" text,
  "pole_position" text,
  "fastest_lap" text,
  "winning_driver" text,
  "winning_constructor" text,
  "report" text
);
SELECT "pole_position" FROM "grands_prix" WHERE "grand_prix"='hungarian grand prix';