Hello!  Can you please list all of the gymnast IDs and their associated hometowns?
select t1.gymnast_id, t2.hometown from gymnast as t1 join people as t2 on t1.gymnast_id = t2.people_id
Awesome!  Which of these hometowns is the most common?
select t2.hometown from gymnast as t1 join people as t2 on t1.gymnast_id = t2.people_id group by t2.hometown order by count ( * ) desc limit 1
Awesome!  Can you show me a list of all people names that are associated with Santo Domingo?
select name from people where hometown = "Santo Domingo"