4945
Just as factor analysis can be viewed as unsupervised linear regression on unobserved , normally distributed hidden variables , product analysis can be viewed as unsupervised linear regression on products of unobserved , normally distributed hidden variables .
 used for: unsupervised linear regression, factor analysis; used for: unsupervised linear regression, product 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: unsupervised linear regression, factor analysis; used for: unsupervised linear regression, product analysis