1465
Both compounds are potent and selective potentiators of human and rat mGlu 5 receptors in vitro , displaying curve shift ratios of two to three fold in the concentration - response relationship to glutamate or the glutamate receptor agonist , DHPG , with no detectable intrinsic agonist properties .
 Chemical: glutamate; Chemical: glutamate; Chemical: DHPG
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: glutamate; Chemical: DHPG