25580
Dextromethorphan has not been shown to cause vacuolization in animals , also known as Olney 's lesions , despite early speculation that it might , due to similarities with ketamine .
 person: Olney
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Olney 
Answer:
 person: Olney