3941
A novel cluster tree enforces sequential tracking in local segments of the sequence while allowing global non-sequential traversal among these segments .
 used for: cluster tree, sequential tracking in local segments; used for: cluster tree, global non-sequential traversal
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:  cluster tree, sequential tracking in local segments; cluster tree, global non-sequential traversal 
Answer:
 used for: cluster tree, sequential tracking in local segments; used for: cluster tree, global non-sequential traversal