CREATE TABLE table_56484 ("Class" CLOB, "Type" CLOB, "Quantity" FLOAT, "Date" CLOB, "LNER Class" CLOB)

What is the Quantity of type 2-4-2t?
SELECT COUNT("Quantity") FROM table_56484 WHERE "Type" = '2-4-2t'
SELECT COUNT("Quantity") FROM "table_56484" WHERE "Type" = '2-4-2t'