Question: What procedures is John Wen trained in? | Do you mean the name of the procedure that John Wen is trained in? | Yes.
SQL: 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"