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We present a new model-based bundle adjustment algorithm to recover the 3D model of a scene/object from a sequence of images with unknown motions .
 used for: model-based bundle adjustment algorithm, 3D model; used for: images, 3D model; part of: unknown motions, images
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:  model-based bundle adjustment algorithm, 3D model; images, 3D model; unknown motions, images 
Answer:
 used for: model-based bundle adjustment algorithm, 3D model; used for: images, 3D model; part of: unknown motions, images