3873
The  Royal Cambodian Air Force  is the branch of the  Royal Cambodian Armed Forces  which is charged with operating all military aircraft in Cambodia .
 subsidiaries: Royal Cambodian Air Force, Royal Cambodian Armed Forces
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:
 subsidiaries: Royal Cambodian Air Force, Royal Cambodian Armed Forces