Question: Which Class has a Number at Lincoln smaller than 1 and a Wheel Arrangement of 0-6-0?
SQL: SELECT "Class" FROM "2-15608800-3" WHERE "Number at Lincoln" < 1.0 AND "Wheel Arrangement" = '0-6-0';

Question: Which Class has a Number at Lincoln larger than 0 and a Number at Doncaster of 8?
SQL: SELECT "Class" FROM "2-15608800-3" WHERE "Number at Lincoln" > 0.0 AND "Number at Doncaster" = 8.0;