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In our method , unsupervised training is first used to train a phone n-gram model for a particular domain ; the output of recognition with this model is then passed to a phone-string classifier .
 part of: unsupervised training, method; used for: unsupervised training, phone n-gram model; used for: unsupervised training, domain
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  unsupervised training, method; unsupervised training, phone n-gram model; unsupervised training, domain 
Answer:
 part of: unsupervised training, method; used for: unsupervised training, phone n-gram model; used for: unsupervised training, domain