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In this paper , we describe a phrase-based unigram model for statistical machine translation that uses a much simpler set of model parameters than similar phrase-based models .
 phrase-based unigram model, statistical machine translation; phrase-based unigram model, phrase-based models; model parameters, phrase-based unigram model
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 phrase-based unigram model, statistical machine translation; phrase-based unigram model, phrase-based models; model parameters, phrase-based unigram model