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Moses Blah  who served as vice president under Taylor after he came to power in  Liberia  is the highest-ranking witness to take the stand against his former boss since his trial began early this year .
 employee of: Moses Blah, Liberia
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:
 employee of: Moses Blah, Liberia