CREATE TABLE table_77703 ("Class" TEXT, "W.A." TEXT, "Quantity" FLOAT, "Date" TEXT, "LNER Class" TEXT)

What class is associated with a W.A. of 0-8-0?
SELECT "Class" FROM table_77703 WHERE "W.A." = '0-8-0'
SELECT "Class" FROM "table_77703" WHERE "W.A." = '0-8-0'