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When lead singer Natalie Maines sent the  Dixie Chicks  into that dreaded limbo known as indefinite hiatus sisters  Emily Robison  and Martie Maguire ( the secondary and tertiary Chicks ) grew flustered .
 employee of: Dixie Chicks, Emily Robison
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: Dixie Chicks, Emily Robison