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A standard ATN should be further developed in order to account for the verbal interactions of task-oriented dialogs .
 used for: ATN, verbal interactions; feature of: verbal interactions, task-oriented dialogs
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:  ATN, verbal interactions; verbal interactions, task-oriented dialogs 
Answer:
 used for: ATN, verbal interactions; feature of: verbal interactions, task-oriented dialogs