CREATE TABLE table_79251 ("Class" CLOB, "Wheel arrangement" CLOB, "Fleet number ( s ) " CLOB, "Manufacturer" CLOB, "Year made" CLOB, "Quantity made" CLOB, "Quantity preserved" CLOB)

Which Class has a Quantity made of 29?
SELECT "Class" FROM table_79251 WHERE "Quantity made" = '29'
SELECT "Class" FROM "table_79251" WHERE "Quantity made" = '29'