CREATE TABLE table_14580 ("Type" CLOB, "Fleet numbers" CLOB, "Quantity made" FLOAT, "Manufacturer" CLOB, "Date made" CLOB, "GSWR Class" FLOAT, "GSWR Nos." CLOB, "GSR Class" CLOB, "Inchicore Class" CLOB, "Withdrawn" CLOB)

What GSR class is associated with a 0-4-2t type?
SELECT "GSR Class" FROM table_14580 WHERE "Type" = '0-4-2t'
SELECT "GSR Class" FROM "table_14580" WHERE "Type" = '0-4-2t'