12055
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 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: fever, ritonavir; adverse effect: maculopapular eruption, ritonavir