6812
In the first patient , two episodes of ventricular tachycardia requiring cardioversion occurred in close temporal sequence with administering bretylium .
 adverse effect: ventricular tachycardia, bretylium
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: ventricular tachycardia, bretylium