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OBJECTIVES : Thrombotic microangiopathy is a well - known problem in patients following renal transplantation .
 Disease: Thrombotic microangiopathy
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: Thrombotic microangiopathy 
Answer:
 Disease: Thrombotic microangiopathy