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Within our framework , we carry out a large number of experiments to understand better and explain why phrase-based models outperform word-based models .
 compare: phrase-based models, word-based models
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:
 compare: phrase-based models, word-based models