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In Ndjamena the opposition Rally for Democracy and Progress ( RDP ) party of  Lol Mahamat Choua  who briefly served as  Chad  's president in 1979 said he had been arrested Sunday by men in military fatigue driving a vehicle belonging to the Chadian presidential guard .
 None
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:
 NA: Lol Mahamat Choua, Chad