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A review of the literature revealed two other cases of hepatic angiosarcoma in patients after long - term cyclophosphamide treatment .
 adverse effect: hepatic angiosarcoma, cyclophosphamide
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:  hepatic angiosarcoma, cyclophosphamide 
Answer:
 adverse effect: hepatic angiosarcoma, cyclophosphamide