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In this paper we describe a novel data structure for phrase-based statistical machine translation which allows for the retrieval of arbitrarily long phrases while simultaneously using less memory than is required by current decoder implementations .
 used for: data structure, phrase-based statistical machine translation; used for: data structure, retrieval of arbitrarily long phrases
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:  data structure, phrase-based statistical machine translation; data structure, retrieval of arbitrarily long phrases 
Answer:
 used for: data structure, phrase-based statistical machine translation; used for: data structure, retrieval of arbitrarily long phrases