Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:

Convert text to sql: Which students in third grade are not taught by teacher COVIN JEROME? Give me the last names of the students. | list : lastname , firstname , grade , classroom | teachers : lastname , firstname , classroom | 

### Response:

select distinct _ from _ where _ | select distinct list.lastname from list join teachers on list.classroom = teachers.classroom where list.grade = 3 and teachers.firstname != 'COVIN' and teachers.lastname != 'JEROME'