27789
Anandamide deficiency and heightened neuropathic pain in aged mice .
 Chemical: Anandamide
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: Anandamide 
Answer:
 Chemical: Anandamide