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On this basis , we discuss the problems of vagueness and ambiguity in semantic annotation .
 conjunction: vagueness, ambiguity; feature of: vagueness, semantic annotation; feature of: ambiguity, semantic annotation
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:  vagueness, ambiguity; vagueness, semantic annotation; ambiguity, semantic annotation 
Answer:
 conjunction: vagueness, ambiguity; feature of: vagueness, semantic annotation; feature of: ambiguity, semantic annotation