802
The presence of metabotropic glutamate receptors ( mGluRs ) of group II modulating glycine exocytosis from glycinergic nerve endings of mouse spinal cord was investigated .
 Chemical: glutamate; Chemical: glycine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: glutamate; Chemical: glycine