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 teacher teaches the most students? Give me the first name and last name of the teacher. | list : lastname , firstname , grade , classroom | teachers : lastname , firstname , classroom | 

### Response:

select _ from _ group by _ order by count ( _ ) desc limit _ | select teachers.firstname , teachers.lastname from list join teachers on list.classroom = teachers.classroom group by teachers.firstname , teachers.lastname order by count ( * ) desc limit 1