CREATE TABLE "season_calendar" (
  "no" real,
  "date" text,
  "round" text,
  "circuit" text,
  "pole_position" text,
  "fastest_lap" text,
  "race_winner" text,
  "report" text
);

Question: Who won the race at Magny-Cours
SQL: SELECT "race_winner" FROM "season_calendar" WHERE "circuit"='Magny-Cours';

Question: Which round was the circuit Assen
SQL: SELECT "round" FROM "season_calendar" WHERE "circuit"='Assen';

Question: How many people won in No. 12
SQL: SELECT COUNT("race_winner") FROM "season_calendar" WHERE "no"=12;