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In this study , we report on three individual patients who received BTX - B and who subsequently developed parasympathetic dysfunction of the visual system after injections of BTX - B at remote sites .
 adverse effect: parasympathetic dysfunction of the visual system, BTX - B; adverse effect: parasympathetic dysfunction of the visual system, BTX - B
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: parasympathetic dysfunction of the visual system, BTX - B; adverse effect: parasympathetic dysfunction of the visual system, BTX - B