13619
A patient that received methadone for cancer - associated pain developed myoclonus as a side effect .
 adverse effect: myoclonus, methadone
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:  myoclonus, methadone 
Answer:
 adverse effect: myoclonus, methadone