2730
Khieu Samphan  76 was hospitalized last Wednesday in Phnom Penh after suffering a stroke and being flown from his home in Pailin in northwestern  Cambodia  by a helicopter dispatched by Prime Minister Hun Sen .
 countries of residence: Khieu Samphan, Cambodia
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 countries of residence: Khieu Samphan, Cambodia