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Layers in the input images will be mapped in the subspace , where it is proven that they form well-defined clusters and can be reliably identified by a simple mean-shift based clustering algorithm .
 Layers, images; images, clusters; mean-shift based clustering algorithm, clusters
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 Layers, images; images, clusters; mean-shift based clustering algorithm, clusters