Classify the cities based on whether they are located in South Georgia and South Sandwich Islands or Dominican Republic.
Santiago, Santo Domingo Este, Santo Domingo, Grytviken
South Georgia and South Sandwich Islands - Grytviken
Dominican Republic - Santo Domingo, Santiago, Santo Domingo Este
Instruction: Classify the cities based on whether they are located in South Georgia and South Sandwich Islands or Dominican Republic.
Santiago, Santo Domingo Este, Santo Domingo, Grytviken
Context: 
Response: South Georgia and South Sandwich Islands - Grytviken
Dominican Republic - Santo Domingo, Santiago, Santo Domingo Este