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First , instead of using the model space as a regular-izer , we directly use it as our search space , thus resulting in a more elegant formulation with fewer unknowns and fewer equations .
 model space, regular-izer; regular-izer, search space; it, search space
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 model space, regular-izer; regular-izer, search space; it, search space