1192
Two patients with imminent gangrene of the extremities caused by ergot - induced arteriospasm underwent mechanical dilatation of the arteries when conventional measures such as anticoagulation , vasodilation , and sympathetic blockade produced no improvement .
 adverse effect: arteriospasm, ergot; adverse effect: gangrene of the extremities, ergot
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: arteriospasm, ergot; adverse effect: gangrene of the extremities, ergot