1012
Paradoxical ventricular tachycardia and fibrillation after intravenous bretylium therapy .
 adverse effect: fibrillation, bretylium; adverse effect: Paradoxical ventricular tachycardia, bretylium
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:  fibrillation, bretylium; Paradoxical ventricular tachycardia, bretylium 
Answer:
 adverse effect: fibrillation, bretylium; adverse effect: Paradoxical ventricular tachycardia, bretylium