18063
OBJECTIVE : The aim of the study was to analyse non - warfarin - associated bleeding adverse drug events reported to the Norwegian spontaneous reporting system , with characterisation of the bleeding locations , outcome and drug interactions .
 Chemical: warfarin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: warfarin 
Answer:
 Chemical: warfarin