What Inchicore Class has a GSWR Class smaller than 268, and a Type of 0-4-2t?
CREATE TABLE "waterford_and_limerick_railway" (
  "year" text,
  "type" text,
  "nos" text,
  "gswr_class" real,
  "gswr_nos" text,
  "gsr_class" text,
  "inchicore_class" text,
  "withdrawn" text
);
SELECT "inchicore_class" FROM "waterford_and_limerick_railway" WHERE "gswr_class"<268 AND "type"='0-4-2t';