CREATE TABLE table_44052 ("Class" CLOB, "Wheel arrangement" CLOB, "Manufacturer" CLOB, "Year made" CLOB, "Quantity made" CLOB, "Quantity preserved" CLOB)

What is Quantitiy Made, when Quantity Preserved is '4-4-0 oooo american'?
SELECT "Quantity made" FROM table_44052 WHERE "Quantity preserved" = '4-4-0 — oooo — american'
SELECT "Quantity made" FROM "table_44052" WHERE "Quantity preserved" = '4-4-0 — oooo — american'