CREATE TABLE "teams_and_drivers" (
  "entrant" text,
  "constructor" text,
  "chassis" text,
  "engine" text,
  "tyre" text,
  "driver" text,
  "rounds" text
);

Question: What company was the entrant for the race with Jack Fairman as the driver with a chassis of t45?
SQL: SELECT "entrant" FROM "teams_and_drivers" WHERE "driver"='jack fairman' AND "chassis"='t45';

Question: What chassis was used by roy salvadori?
SQL: SELECT "chassis" FROM "teams_and_drivers" WHERE "driver"='roy salvadori';