human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Class, Wheel arrangement, Fleet number(s), Year made, Quantity made, Quantity preserved
###Question: What is the quantity made of the e-22 class, which has a quantity preserved of 0?
gpt
SELECT Quantity made FROM table WHERE Quantity preserved = 0 AND Class = e-22