7107
However , for high-dimensional continuous-state tasks , it can be extremely difficult to build an accurate model , and thus often the algorithm returns a policy that works in simulation but not in real-life .
 used for: model, high-dimensional continuous-state tasks; used for: algorithm, policy
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:  model, high-dimensional continuous-state tasks; algorithm, policy 
Answer:
 used for: model, high-dimensional continuous-state tasks; used for: algorithm, policy