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We pursue a hierarchical sparse coding approach that learns features useful in discriminating images across locations , by initializing it with a geometric prior corresponding to transformations between image appearance space and their corresponding location grouping space using the notion of parallel transport on manifolds .
 used for: geometric prior, it; used for: parallel transport on manifolds, geometric prior
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:  geometric prior, it; parallel transport on manifolds, geometric prior 
Answer:
 used for: geometric prior, it; used for: parallel transport on manifolds, geometric prior