4532
Most existing algorithms require the prior knowledge of intrinsic parameters of the PTZ camera to infer the relative positioning and orientation among multiple PTZ cameras .
 used for: algorithms, relative positioning; used for: algorithms, orientation; used for: prior knowledge of intrinsic parameters of the PTZ camera, algorithms; conjunction: relative positioning, orientation; feature of: relative positioning, PTZ cameras; feature of: orientation, PTZ cameras
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:  algorithms, relative positioning; algorithms, orientation; prior knowledge of intrinsic parameters of the PTZ camera, algorithms; relative positioning, orientation; relative positioning, PTZ cameras; orientation, PTZ cameras 
Answer:
 used for: algorithms, relative positioning; used for: algorithms, orientation; used for: prior knowledge of intrinsic parameters of the PTZ camera, algorithms; conjunction: relative positioning, orientation; feature of: relative positioning, PTZ cameras; feature of: orientation, PTZ cameras