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We describe a nonlinear generalization of factor analysis , called `` product analy-sis '' , that models the observed variables as a linear combination of products of normally distributed hidden variables .
 used for: nonlinear generalization of factor analysis, observed variables; hyponym of: `` product analy-sis '', nonlinear generalization of factor analysis; used for: linear combination of products of normally distributed hidden variables, nonlinear generalization of factor analysis
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: nonlinear generalization of factor analysis, observed variables; hyponym of: `` product analy-sis '', nonlinear generalization of factor analysis; used for: linear combination of products of normally distributed hidden variables, nonlinear generalization of factor analysis