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Or , -LRB- 2 -RRB- the context of the polysemous word will be used as a key to search a large corpus ; all words found to occur in that context will be noted ; WordNet will then be used to estimate the semantic distance from those words to the alternative senses of the polysemous word ; and that sense will be chosen that is closest in meaning to other words occurring in the same context If successful , this procedure could have practical applications to problems of information retrieval , mechanical translation , intelligent tutoring systems , and elsewhere .
 used for: WordNet, semantic distance; used for: procedure, information retrieval; used for: procedure, mechanical translation; used for: procedure, intelligent tutoring systems; conjunction: information retrieval, mechanical translation; conjunction: mechanical translation, intelligent tutoring systems
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:  WordNet, semantic distance; procedure, information retrieval; procedure, mechanical translation; procedure, intelligent tutoring systems; information retrieval, mechanical translation; mechanical translation, intelligent tutoring systems 
Answer:
 used for: WordNet, semantic distance; used for: procedure, information retrieval; used for: procedure, mechanical translation; used for: procedure, intelligent tutoring systems; conjunction: information retrieval, mechanical translation; conjunction: mechanical translation, intelligent tutoring systems