10745
A 25-year - old woman sought medical attention because of iliocaval manifestations of retroperitoneal fibrosis while she was taking methysergide .
 adverse effect: retroperitoneal fibrosis, methysergide
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:  retroperitoneal fibrosis, methysergide 
Answer:
 adverse effect: retroperitoneal fibrosis, methysergide