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We analyze a reweighted version of the Kikuchi approximation for estimating the log partition function of a product distribution defined over a region graph .
 used for: reweighted version of the Kikuchi approximation, log partition function of a product distribution; feature of: log partition function of a product distribution, region graph
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: reweighted version of the Kikuchi approximation, log partition function of a product distribution; feature of: log partition function of a product distribution, region graph