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A consequence of that framework was a proposal for a new approach to the segmentation of complex scenes into regions corresponding to coherent surfaces rather than merely regions of similar color .
 used for: framework, approach; used for: approach, segmentation of complex scenes; compare: coherent surfaces, regions of similar color
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:  framework, approach; approach, segmentation of complex scenes; coherent surfaces, regions of similar color 
Answer:
 used for: framework, approach; used for: approach, segmentation of complex scenes; compare: coherent surfaces, regions of similar color