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The method we are currently working on uses an expectation-maximization -LRB- EM -RRB- based word-clustering algorithm , and we have evaluated the effectiveness of this method using Japanese verb phrases .
 used for: expectation-maximization -LRB- EM -RRB- based word-clustering algorithm, method; used for: Japanese verb phrases, method
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: expectation-maximization -LRB- EM -RRB- based word-clustering algorithm, method; used for: Japanese verb phrases, method