Task: Text to Code
Input (English): SQL: SELECT LastName FROM list WHERE FirstName = "JEROME" EXCEPT SELECT LastName FROM list WHERE FirstName = "COVIN"
Feedback: Remove condition , put grade equals 3 in step 1 and teacher's full name equals COVIN JEROME in step 2.
Output (English): SELECT DISTINCT T1.lastname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom  =  T2.classroom WHERE T1.grade  =  3 AND T2.firstname != "COVIN" AND T2.lastname != "JEROME"