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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 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: 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