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Towards the modeling of the dynamic characteristics , optical flow is computed and utilized as a feature in a higher dimensional space .
 used for: optical flow, modeling of the dynamic characteristics; used for: optical flow, feature; used for: feature, modeling of the dynamic characteristics; feature of: higher dimensional space, feature
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: optical flow, modeling of the dynamic characteristics; used for: optical flow, feature; used for: feature, modeling of the dynamic characteristics; feature of: higher dimensional space, feature