18277
Activation of the cannabinoid CB1 receptor ( CB1 ) is modulated by aspartate residue D2 . 63 ( 176 ) in transmembrane helix ( TMH ) 2 .
 Chemical: aspartate
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: aspartate 
Answer:
 Chemical: aspartate