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Our strategy is based on a hierarchical abstraction of the supervoxel graph that allows us to minimize an energy defined at the finest level of the hierarchy by minimizing a series of simpler energies defined over coarser graphs .
 used for: hierarchical abstraction of the supervoxel graph, strategy
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:  hierarchical abstraction of the supervoxel graph, strategy 
Answer:
 used for: hierarchical abstraction of the supervoxel graph, strategy