6920
Comprehensive evaluation is performed on a variety of challenging non-rigid surfaces including face , cloth and people .
 face, non-rigid surfaces; face, cloth; cloth, non-rigid surfaces; cloth, people; people, non-rigid surfaces
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 face, non-rigid surfaces; face, cloth; cloth, non-rigid surfaces; cloth, people; people, non-rigid surfaces