CREATE TABLE table_54951 ("Class" CLOB, "Wheel arrangement" CLOB, "Fleet number ( s ) " CLOB, "Manufacturer" CLOB, "Year made" CLOB, "Quantity made" CLOB, "Quantity preserved" CLOB, "Year ( s )  withdrawn" CLOB)

What is the fleet number of the locomotive with 1 quantity made?
SELECT "Fleet number(s)" FROM table_54951 WHERE "Quantity made" = '1'
SELECT "Fleet number(s)" FROM "table_54951" WHERE "Quantity made" = '1'