CREATE TABLE table_57712 ("Class" CLOB, "Type" CLOB, "Quantity" FLOAT, "Date" CLOB, "LNER Class" CLOB)

What class has a LNER Class of d8?
SELECT "Class" FROM table_57712 WHERE "LNER Class" = 'd8'
SELECT "Class" FROM "table_57712" WHERE "LNER Class" = 'd8'