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a work of the united states government , as defined by united states copyright law , is `` a work prepared by an officer or employee of the u.s. government as part of that person 's official duties . ''
 product producer: work, employee
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: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 product producer: work, employee