2909
Epstein - Barr virus - associated lymphoproliferative disorder in a patient with rheumatoid arthritis on methotrexate and rofecoxib : idiosyncratic reaction or pharmacogenetics ?
 adverse effect: Epstein - Barr virus - associated lymphoproliferative disorder, methotrexate; adverse effect: Epstein - Barr virus - associated lymphoproliferative disorder, rofecoxib
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: Epstein - Barr virus - associated lymphoproliferative disorder, methotrexate; adverse effect: Epstein - Barr virus - associated lymphoproliferative disorder, rofecoxib