Question: What class has a LNER Class of D8?
SQL: SELECT "Class" FROM "2-1169568-2" WHERE "LNER Class" = 'D8';

Question: What LNER Class has a Class of 6DB?
SQL: SELECT "LNER Class" FROM "2-1169568-2" WHERE "Class" = '6DB';

Question: What LNER Class has a Class of 3?
SQL: SELECT "LNER Class" FROM "2-1169568-2" WHERE "Class" = '3';