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We propose a process model for hierarchical perceptual sound organization , which recognizes perceptual sounds included in incoming sound signals .
 process model, hierarchical perceptual sound organization; perceptual sounds, incoming sound signals
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:
 process model, hierarchical perceptual sound organization; perceptual sounds, incoming sound signals