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The development of such a model appears to be important in several respects : as a device to represent and to use different dialog schemata proposed in empirical conversation analysis ; as a device to represent and to use models of verbal interaction ; as a device combining knowledge about dialog schemata and about verbal interaction with knowledge about task-oriented and goal-directed dialogs .
 used for: dialog schemata, device; used for: dialog schemata, conversation analysis; used for: models, device; used for: models, verbal interaction; conjunction: dialog schemata, verbal interaction
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: dialog schemata, device; used for: dialog schemata, conversation analysis; used for: models, device; used for: models, verbal interaction; conjunction: dialog schemata, verbal interaction