1309
Urotensin - II ( U - II ) receptors are widely distributed in the central nervous system .
 Chemical: Urotensin - II; Chemical: U - II
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: Urotensin - II, U - II 
Answer:
 Chemical: Urotensin - II; Chemical: U - II