3254
CONCLUSION : Long - term treatment with rifabutin may have a reversible and previously undescribed side - effect on retinal function .
 adverse effect: side - effect on retinal function, rifabutin
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: side - effect on retinal function, rifabutin