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Motivated by these arguments , we introduce a number of new performance enhancing techniques including part of speech tagging , new similarity measures and expanded stop lists .
 part of speech tagging, performance enhancing techniques; part of speech tagging, similarity measures; similarity measures, performance enhancing techniques; similarity measures, expanded stop lists; expanded stop lists, performance enhancing techniques
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:
 part of speech tagging, performance enhancing techniques; part of speech tagging, similarity measures; similarity measures, performance enhancing techniques; similarity measures, expanded stop lists; expanded stop lists, performance enhancing techniques