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This is facilitated through the use of phrase boundary heuristics based on the placement of function words , and by heuristic rules that permit certain kinds of phrases to be deduced despite the presence of unknown words .
 function words, phrase boundary heuristics
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:
 function words, phrase boundary heuristics