463
Collectively this broad spectrum profile of efficacy of GRN - 529 supports our hypothesis that negative allosteric modulation of mGluR5 could represent an innovative therapeutic approach to the treatment of TRD .
 Chemical: GRN - 529
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: GRN - 529 
Answer:
 Chemical: GRN - 529