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Experiments show that the learned tracker performs much better than existing trackers on the tracking of complex non-rigid motions such as fish twisting with self-occlusion and large inter-frame lip motion .
 compare: tracker, trackers; used for: tracker, tracking of complex non-rigid motions; used for: trackers, tracking of complex non-rigid motions; hyponym of: fish twisting, complex non-rigid motions; feature of: self-occlusion, fish twisting; conjunction: self-occlusion, inter-frame lip motion; feature of: inter-frame lip motion, fish twisting
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:  tracker, trackers; tracker, tracking of complex non-rigid motions; trackers, tracking of complex non-rigid motions; fish twisting, complex non-rigid motions; self-occlusion, fish twisting; self-occlusion, inter-frame lip motion; inter-frame lip motion, fish twisting 
Answer:
 compare: tracker, trackers; used for: tracker, tracking of complex non-rigid motions; used for: trackers, tracking of complex non-rigid motions; hyponym of: fish twisting, complex non-rigid motions; feature of: self-occlusion, fish twisting; conjunction: self-occlusion, inter-frame lip motion; feature of: inter-frame lip motion, fish twisting