10241
OBJECTIVES : A delayed stroke - like leukoencephalopathy has been observed in patients receiving methotrexate ( MTX ) for childhood leukemia .
 adverse effect: stroke - like leukoencephalopathy, methotrexate; adverse effect: stroke - like leukoencephalopathy, MTX
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  stroke - like leukoencephalopathy, methotrexate; stroke - like leukoencephalopathy, MTX 
Answer:
 adverse effect: stroke - like leukoencephalopathy, methotrexate; adverse effect: stroke - like leukoencephalopathy, MTX