Cambodia sealed itself off during Pol Pot 's rule .
Pol Pot /people/person/nationality Cambodia
Pol Pot /people/deceased_person/place_of_death Cambodia
NNP VBD PRP RP IN NNP NNP POS NN .
Pol Pot
PERSON
Cambodia
LOCATION
/people/person/nationality
Pol Pot
PERSON
Cambodia
LOCATION
/people/deceased_person/place_of_death