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: Report the number of students in each classroom. | list : lastname , firstname , grade , classroom | teachers : lastname , firstname , classroom | 

### Response:

select _ , count ( _ ) from _ group by _ | select classroom , count ( * ) from list group by classroom