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To overcome this , state-of-the-art structured learning methods frame the problem as one of large margin estimation .
 used for: structured learning methods, problem; used for: large margin estimation, problem
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:  structured learning methods, problem; large margin estimation, problem 
Answer:
 used for: structured learning methods, problem; used for: large margin estimation, problem