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In this paper , we study the problem of diagram interpretation and reasoning , the challenging task of identifying the structure of a diagram and the semantics of its constituents and their relationships .
 task, structure of a diagram
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:
 task, structure of a diagram