8370
The ulcer did not respond to antibiotic treatment and healed shortly after withholding ATRA .
 adverse effect: ulcer, ATRA
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:  ulcer, ATRA 
Answer:
 adverse effect: ulcer, ATRA