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In the case of natural speech signals , the method is shown to have separation accuracy better than the state-of-the-art methods .
 used for: method, natural speech signals; compare: method, methods; evaluate for: separation accuracy, method; evaluate for: separation accuracy, methods; used for: methods, natural speech signals
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: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 used for: method, natural speech signals; compare: method, methods; evaluate for: separation accuracy, method; evaluate for: separation accuracy, methods; used for: methods, natural speech signals