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This paper presents a novel representation for three-dimensional objects in terms of affine-invariant image patches and their spatial relationships .
 used for: representation, three-dimensional objects; feature of: affine-invariant image patches, three-dimensional objects; feature of: spatial relationships, affine-invariant image patches
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: representation, three-dimensional objects; feature of: affine-invariant image patches, three-dimensional objects; feature of: spatial relationships, affine-invariant image patches