7527
CONCLUSIONS : Acute severe hepatitis though rare is occasionally observed with EGFR inhibitors gefitinib or erlotinib .
 adverse effect: Acute severe hepatitis, erlotinib; adverse effect: Acute severe hepatitis, gefitinib
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: Acute severe hepatitis, erlotinib; adverse effect: Acute severe hepatitis, gefitinib