SELECT name FROM procedures WHERE cost  >  1000 EXCEPT SELECT T3.name FROM physician AS T1 JOIN trained_in AS T2 ON T1.employeeid  =  T2.physician JOIN procedures AS T3 ON T3.code  =  T2.treatment WHERE T1.name  =  "John Wen"
Among the procedures that cost more than 1000, which were not specialized in by physician John Wen?
SELECT name FROM procedures WHERE cost > 1000 EXCEPT SELECT T3.name FROM physician AS T1 JOIN trained_in AS T2 ON T1.employeeid = T2.physician JOIN procedures AS T3 ON T3.code = T2.treatment WHERE T1.name = `` John Wen ''
select name from procedures where cost > value except select t3 . name from physician as t1 join trained_in as t2 on t1 . employeeid = t2 . physician join procedures as t3 on t3 . code = t2 . treatment where t1 . name = value
Among the procedures that cost more than 1000 , which were not specialized in by physician John Wen ?