10181
As dysfunction of alpha 7nAChRs plays a major role in the pathophysiology of central nervous system disorders , elucidation of KYNA ' s action on this receptor subtype has significant therapeutic implications .
 Chemical: KYNA
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: KYNA 
Answer:
 Chemical: KYNA