1349
Nitro - L - arginine methyl ester : a potential protector against gentamicin ototoxicity .
 Chemical: Nitro - L - arginine methyl ester; Chemical: gentamicin; Disease: ototoxicity
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: Nitro - L - arginine methyl ester, gentamicin, ototoxicity 
Answer:
 Chemical: Nitro - L - arginine methyl ester; Chemical: gentamicin; Disease: ototoxicity