6796
However , a large case - control study included three cases of either Stevens - Johnson syndrome or toxic epidermal necrolysis associated with ofloxacin use , but no details of the cases were given .
 adverse effect: Stevens - Johnson syndrome, ofloxacin; adverse effect: toxic epidermal necrolysis, ofloxacin
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:  Stevens - Johnson syndrome, ofloxacin; toxic epidermal necrolysis, ofloxacin 
Answer:
 adverse effect: Stevens - Johnson syndrome, ofloxacin; adverse effect: toxic epidermal necrolysis, ofloxacin