CREATE TABLE "schedule" (
  "race" text,
  "length" text,
  "class" text,
  "circuit" text,
  "date" text
);

Question: Which date was held at Laguna Seca Raceway, in class GTX/GTO?
SQL: SELECT "date" FROM "schedule" WHERE "circuit"='laguna seca raceway' AND "class"='gtx/gto';

Question: Which circuit was held on May 7 for 1 hour?
SQL: SELECT "circuit" FROM "schedule" WHERE "date"='may 7' AND "length"='1 hour';

Question: Which circuit has a length of 45 minutes and is held on August 6?
SQL: SELECT "circuit" FROM "schedule" WHERE "length"='45 minutes' AND "date"='august 6';

Question: What is the length of the 6 Hours of Talladega?
SQL: SELECT "length" FROM "schedule" WHERE "race"='6 hours of talladega';