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For this purpose , we have designed a version of KL-ONE which represents the epistemological level , while the new experimental language , KL-Conc , represents the conceptual level .
 KL-ONE, KL-Conc; epistemological level, KL-ONE; conceptual level, KL-Conc
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:
 KL-ONE, KL-Conc; epistemological level, KL-ONE; conceptual level, KL-Conc