3785
Failure of ancrod in the treatment of heparin - induced arterial thrombosis .
 Chemical: heparin; Disease: thrombosis
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: heparin, thrombosis 
Answer:
 Chemical: heparin; Disease: thrombosis