2971
Moreover , the models are automatically derived by decision tree learning using real dialogue data collected by the system .
 used for: decision tree learning, models; used for: real dialogue data, decision tree learning; used for: system, real dialogue data
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:  decision tree learning, models; real dialogue data, decision tree learning; system, real dialogue data 
Answer:
 used for: decision tree learning, models; used for: real dialogue data, decision tree learning; used for: system, real dialogue data