12918
Fatal pulmonary fibrosis associated with BCNU : the relative role of platelet - derived growth factor - B , insulin - like growth factor I , transforming growth factor - beta1 and cyclooxygenase-2 .
 adverse effect: Fatal pulmonary fibrosis, BCNU
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:  Fatal pulmonary fibrosis, BCNU 
Answer:
 adverse effect: Fatal pulmonary fibrosis, BCNU