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The goal of this research is to develop a spoken language system that will demonstrate the usefulness of voice input for interactive problem solving .
 spoken language system, interactive problem solving; voice input, interactive problem solving
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:
 spoken language system, interactive problem solving; voice input, interactive problem solving