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To overcome the singularity problem of the least squares estimate -LRB- LSE -RRB- method , an approximate least squares estimate -LRB- ALSE -RRB- method is proposed to estimate the parameters of the ACGMRF model .
 feature of: singularity problem, least squares estimate -LRB- LSE -RRB- method; used for: approximate least squares estimate -LRB- ALSE -RRB- method, parameters of the ACGMRF model
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:
 feature of: singularity problem, least squares estimate -LRB- LSE -RRB- method; used for: approximate least squares estimate -LRB- ALSE -RRB- method, parameters of the ACGMRF model