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Borrowing techniques from the literature on training deep generative models , we present the Wake-Sleep Recurrent Attention Model , a method for training stochastic attention networks which improves posterior inference and which reduces the variability in the stochastic gradients .
 used for: Borrowing techniques, deep generative models; used for: method, stochastic attention networks; used for: stochastic attention networks, posterior inference
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  Borrowing techniques, deep generative models; method, stochastic attention networks; stochastic attention networks, posterior inference 
Answer:
 used for: Borrowing techniques, deep generative models; used for: method, stochastic attention networks; used for: stochastic attention networks, posterior inference