SELECT T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID  =  T2.Railway_ID WHERE T2.Name  =  "Andaman Exp"
Show the builder of railways associated with the trains named "Andaman Exp".
SELECT T1.Builder FROM railway AS T1 JOIN train AS T2 ON T1.Railway_ID = T2.Railway_ID WHERE T2.Name = `` Andaman Exp ''
select t1 . builder from railway as t1 join train as t2 on t1 . railway_id = t2 . railway_id where t2 . name = value
Show the builder of railways associated with the trains named `` Andaman Exp '' .