CREATE TABLE "production" (
  "system" text,
  "owner" text,
  "quantity" real,
  "delivery" text,
  "length" text,
  "gauge" text,
  "operation" text,
  "seats" real,
  "standing" real
);

Question: How many seats have a quantity over 45?
SQL: SELECT SUM("seats") FROM "production" WHERE "quantity">45;

Question: Which owner has 84 seats?
SQL: SELECT "owner" FROM "production" WHERE "seats"=84;

Question: Which deliver has 16 and a standing more than 128?
SQL: SELECT "delivery" FROM "production" WHERE "quantity"=16 AND "standing">128;