What is the railway number of the aw class?
CREATE TABLE table_name_3 (railway_number_s_ VARCHAR, class VARCHAR)
SELECT railway_number_s_ FROM table_name_3 WHERE class = "aw"
### Context: CREATE TABLE table_name_3 (railway_number_s_ VARCHAR, class VARCHAR) ### Question: What is the railway number of the aw class? ### Answer: SELECT railway_number_s_ FROM table_name_3 WHERE class = "aw"