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This paper addresses the issue of word-sense ambiguity in extraction from machine-readable resources for the construction of large-scale knowledge sources .
 used for: machine-readable resources, word-sense ambiguity; used for: machine-readable resources, construction of large-scale knowledge sources
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:  machine-readable resources, word-sense ambiguity; machine-readable resources, construction of large-scale knowledge sources 
Answer:
 used for: machine-readable resources, word-sense ambiguity; used for: machine-readable resources, construction of large-scale knowledge sources