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We report 2 cases of maculopapular eruption and fever in patients infected with human immunodeficiency virus ( HIV ) on the 2nd day of first administration of ritonavir , a protease inhibitor .
 adverse effect: fever, ritonavir; adverse effect: maculopapular eruption, ritonavir
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  fever, ritonavir; maculopapular eruption, ritonavir 
Answer:
 adverse effect: fever, ritonavir; adverse effect: maculopapular eruption, ritonavir