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Accordingly , intra - BLA microinjection of DHPG , a group I mGluR agonist , caused PL cortex neuron activity depression , antagonized by CPCCOEt .
 Chemical: DHPG; Chemical: CPCCOEt
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: DHPG; Chemical: CPCCOEt