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Traditional methods for color constancy can improve surface re-flectance estimates from such uncalibrated images , but their output depends significantly on the background scene .
 used for: methods, color constancy; used for: methods, surface re-flectance estimates; used for: uncalibrated images, surface re-flectance estimates
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: methods, color constancy; used for: methods, surface re-flectance estimates; used for: uncalibrated images, surface re-flectance estimates