8018
Moreover , the models are automatically derived by decision tree learning using real dialogue data collected by the system .
 decision tree learning, models; real dialogue data, decision tree learning; system, real dialogue data
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:
 decision tree learning, models; real dialogue data, decision tree learning; system, real dialogue data