497
Vigabatrin - induced visual field defects are at present the most important safety issue in the use of the drug .
 adverse effect: visual field defects, Vigabatrin
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:  visual field defects, Vigabatrin 
Answer:
 adverse effect: visual field defects, Vigabatrin