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Automatic estimation of word significance oriented for speech-based Information Retrieval -LRB- IR -RRB- is addressed .
 Automatic estimation of word significance, speech-based Information Retrieval -LRB- IR -RRB-
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:
 Automatic estimation of word significance, speech-based Information Retrieval -LRB- IR -RRB-