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Second , is it possible to improve the recognition performance of a Phonebook-trained baseline acoustic model by using additional out-of-domain training data ?
 used for: Phonebook-trained baseline acoustic model, recognition; used for: out-of-domain training data, Phonebook-trained baseline acoustic model
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
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Answer:
 used for: Phonebook-trained baseline acoustic model, recognition; used for: out-of-domain training data, Phonebook-trained baseline acoustic model