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We describe an implementation of data-driven selection of emphatic facial displays for an embodied conversational agent in a dialogue system .
 data-driven selection, embodied conversational agent; emphatic facial displays, data-driven selection; embodied conversational agent, dialogue system
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 data-driven selection, embodied conversational agent; emphatic facial displays, data-driven selection; embodied conversational agent, dialogue system