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We report a 4-year - old girl who presented with acute bilateral blindness , a focal seizure and hypertension 10 days after commencing oxybutynin to treat enuresis .
 adverse effect: acute bilateral blindness, oxybutynin; adverse effect: focal seizure, oxybutynin; adverse effect: hypertension, oxybutynin
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:  acute bilateral blindness, oxybutynin; focal seizure, oxybutynin; hypertension, oxybutynin 
Answer:
 adverse effect: acute bilateral blindness, oxybutynin; adverse effect: focal seizure, oxybutynin; adverse effect: hypertension, oxybutynin