What is the railway number of t 4 ii class?
CREATE TABLE table_name_68 (railway_number_s_ VARCHAR, class VARCHAR)
SELECT railway_number_s_ FROM table_name_68 WHERE class = "t 4 ii"
### Context: CREATE TABLE table_name_68 (railway_number_s_ VARCHAR, class VARCHAR) ### Question: What is the railway number of t 4 ii class? ### Answer: SELECT railway_number_s_ FROM table_name_68 WHERE class = "t 4 ii"