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Based on the Naranjo algorithm , the adverse reaction observed was probably related to the hydroxyurea treatment ( score = 6 ) ; however , the hydroxyurea chemotherapy could not be discontinued because of the myeloproliferative disorder .
 adverse effect: myeloproliferative disorder, hydroxyurea
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: myeloproliferative disorder, hydroxyurea