7555
It was postulated that the allergic reaction was most likely caused by capecitabine or the intermediate metabolites based on the immediate reappearance of symptoms from the rechallenge , pharmacokinetic data , and well - tolerance of fluorouracil .
 adverse effect: allergic reaction, capecitabine
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: allergic reaction, capecitabine