6137
Yarmuk became part of the  Caucasian Front  in 2005 and joined the  Caucasus Emirate  in 2007 .
 subsidiaries: Caucasian Front, Caucasus Emirate
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: Caucasian Front, Caucasus Emirate