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As an educational tool , it has been used as part of a unit on protocol analysis in an Educational Research Methods course .
 used for: educational tool, protocol analysis
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:  educational tool, protocol analysis 
Answer:
 used for: educational tool, protocol analysis