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Operation Sharp Edge was a non-combatant evacuation operation carried out by the  22nd Marine Expeditionary Unit  ( 22nd MEU ) of the  United States Marine Corps  in Liberia in 1990 and 1991 .
 subsidiaries: 22nd Marine Expeditionary Unit, United States Marine Corps
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: 22nd Marine Expeditionary Unit, United States Marine Corps