2046
BACKGROUND : Unfractionated heparin sodium ( UFH ) or low - molecular weight heparin ( LMWH ) is used in anticoagulant protocols at several institutions to prevent thrombosis after liver transplantation .
 Chemical: Unfractionated heparin sodium; Chemical: UFH; Chemical: low - molecular weight 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: Unfractionated heparin sodium, UFH, low - molecular weight heparin, thrombosis 
Answer:
 Chemical: Unfractionated heparin sodium; Chemical: UFH; Chemical: low - molecular weight heparin; Disease: thrombosis