CREATE TABLE table_name_36 (quantity_made VARCHAR2, quantity_preserved VARCHAR2, class VARCHAR2)

What is the quantity made of the e-22 class, which has a quantity preserved of 0?
SELECT quantity_made FROM table_name_36 WHERE quantity_preserved = "0" AND class = "e-22"
SELECT "quantity_made" FROM "table_name_36" WHERE "0" = "quantity_preserved" AND "class" = "e-22"