891
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 options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  Phonebook-trained baseline acoustic model, recognition; out-of-domain training data, Phonebook-trained baseline acoustic model 
Answer:
 used for: Phonebook-trained baseline acoustic model, recognition; used for: out-of-domain training data, Phonebook-trained baseline acoustic model