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This system identifies features of sentences based on semantic similarity measures and discourse structure .
 system, features; semantic similarity measures, features; discourse structure, features; discourse structure, semantic similarity measures
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:
 system, features; semantic similarity measures, features; discourse structure, features; discourse structure, semantic similarity measures