CREATE TABLE "calendar" (
  "round" real,
  "date" text,
  "grand_prix" text,
  "circuit" text,
  "pole_position" text,
  "fastest_lap" text,
  "race_winner" text
);

Question: Which round 5 Grand Prix had Daijiro Hiura at pole position? 
SQL: SELECT "grand_prix" FROM "calendar" WHERE "pole_position"='Daijiro Hiura' AND "round"=5;

Question: What grand prixs did Daijiro Hiura win? 
SQL: SELECT "grand_prix" FROM "calendar" WHERE "race_winner"='Daijiro Hiura';

Question: Who had the fastest lap in the Dutch TT Grand Prix? 
SQL: SELECT "fastest_lap" FROM "calendar" WHERE "grand_prix"='Dutch TT';

Question: Luis Salom had the fastest lap on which circuits? 
SQL: SELECT "circuit" FROM "calendar" WHERE "fastest_lap"='Luis Salom';