1951
BACKGROUND : We report on the manifestation of a levetiracetam ( LEV ) - induced encephalopathy .
 Chemical: levetiracetam; Chemical: LEV; Disease: encephalopathy
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: levetiracetam, LEV, encephalopathy 
Answer:
 Chemical: levetiracetam; Chemical: LEV; Disease: encephalopathy