What are the names of gymnasts whose hometown is not "Santo Domingo"?
SELECT T2.Name FROM gymnast AS T1 JOIN people AS T2 ON T1.Gymnast_ID  =  T2.People_ID WHERE T2.Hometown != "Santo Domingo"
names of gymnasts = SELECT T2.Name; whose hometown is not 'Santo Domingo' refers to WHERE T2.Hometown != 'Santo Domingo'; gymnasts information is in gymnast table and people table, requiring a JOIN on Gymnast_ID = People_ID;