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For categorization task , positive feature vectors and negative feature vectors are used cooperatively to construct generic , indicative summaries .
 used for: positive feature vectors, categorization task; conjunction: positive feature vectors, negative feature vectors; used for: positive feature vectors, generic , indicative summaries; used for: negative feature vectors, categorization task; used for: negative feature vectors, generic , indicative summaries
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 used for: positive feature vectors, categorization task; conjunction: positive feature vectors, negative feature vectors; used for: positive feature vectors, generic , indicative summaries; used for: negative feature vectors, categorization task; used for: negative feature vectors, generic , indicative summaries