What is the build date of the locomotives with a total produced less than 45 and a fb-2 model?
CREATE TABLE "cab_units_fa_fp_series" (
  "model" text,
  "specification" text,
  "build_date" text,
  "total_produced" real,
  "wheel_arrangement" text,
  "prime_mover" text,
  "power_output" text
);
SELECT "build_date" FROM "cab_units_fa_fp_series" WHERE "total_produced"<45 AND "model"='fb-2';