4941
Instead of representing scene/object by a collection of isolated 3D features -LRB- usually points -RRB- , our algorithm uses a surface controlled by a small set of parameters .
 used for: surface, algorithm
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:  surface, algorithm 
Answer:
 used for: surface, algorithm