human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Class, Wheel Arrangement, Railway, Number at Doncaster, Number at Lincoln
###Question: Which Class has a Number at Lincoln smaller than 1 and a Wheel Arrangement of 0-6-0?
gpt
SELECT Class FROM table WHERE Number at Lincoln < 1 AND Wheel Arrangement = 0-6-0