11846
The increasing prevalence of methamphetamine abuse and the severity of the associated ulcers should alert ophthalmologists to the problem of methamphetamine - related keratitis .
 adverse effect: keratitis, methamphetamine; adverse effect: ulcers, methamphetamine
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: keratitis, methamphetamine; adverse effect: ulcers, methamphetamine