CREATE TABLE table_75983 ("Class" TEXT, "Wheel Arrangement" TEXT, "Railway" TEXT, "Number at Doncaster" FLOAT, "Number at Lincoln" FLOAT)

Which Class has a Number at Lincoln smaller than 1 and a Wheel Arrangement of 0-6-0?
SELECT "Class" FROM table_75983 WHERE "Number at Lincoln" < '1' AND "Wheel Arrangement" = '0-6-0'
SELECT "Class" FROM "table_75983" WHERE "Number at Lincoln" < '1' AND "Wheel Arrangement" = '0-6-0'