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The algorithm utilizes both spatial and temporal intensity variation as cues : the former constrains flow and the latter constrains surface orientation ; combining both cues enables dense reconstruction of both textured and texture-less surfaces .
 used for: spatial and temporal intensity variation, algorithm; hyponym of: former, cues; used for: former, flow; conjunction: former, latter; hyponym of: latter, cues; used for: latter, surface orientation; used for: cues, dense reconstruction of both textured and texture-less surfaces
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: spatial and temporal intensity variation, algorithm; hyponym of: former, cues; used for: former, flow; conjunction: former, latter; hyponym of: latter, cues; used for: latter, surface orientation; used for: cues, dense reconstruction of both textured and texture-less surfaces