2974
Methotrexate ( MTX ) is a commonly used second line agent for RA , and there have been several recent reports of Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder in MTX - treated RA patients .
 adverse effect: Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, Methotrexate; adverse effect: Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, MTX; adverse effect: Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, MTX
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 ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, Methotrexate; adverse effect: Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, MTX; adverse effect: Epstein - Barr virus ( EBV ) - associated polyclonal B cell lymphoproliferative disorder, MTX