1312
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 a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 used for: cluster tree, sequential tracking in local segments; used for: cluster tree, global non-sequential traversal