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: What are the hometowns of gymnasts and the corresponding number of gymnasts? | gymnast : gymnast_id , floor_exercise_points , pommel_horse_points , rings_points , vault_points , parallel_bars_points , horizontal_bar_points , total_points | people : people_id , name , age , height , hometown | gymnast.gymnast_id = people.people_id | 

### Response:

select _ , count ( _ ) from _ group by _ | select people.hometown , count ( * ) from gymnast join people on gymnast.gymnast_id = people.people_id group by people.hometown