CREATE TABLE "locomotives" (
  "builder" text,
  "works_no" real,
  "built" real,
  "wheels" text,
  "notes" text
);

Question: Which wheels were built 1920?
SQL: SELECT "wheels" FROM "locomotives" WHERE "built"=1920;

Question: Which builder has a Built smaller than 1880?
SQL: SELECT "builder" FROM "locomotives" WHERE "built"<1880;