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For adhoc task , a text model based on relationship between nouns and verbs is used to filter out irrelevant discourse segment , to rank relevant sentences , and to generate the user-directed summaries .
 used for: text model, adhoc task; used for: text model, discourse segment; used for: text model, user-directed 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: text model, adhoc task; used for: text model, discourse segment; used for: text model, user-directed summaries