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The neural network underlying the ability of 5 - HT ( 1A ) agonists to treat cognitive impairments of schizophrenia likely includes dopamine , glutamate , and gamma - aminobutyric acid neurons .
 Chemical: 5 - HT; Chemical: dopamine; Chemical: glutamate; Chemical: gamma - aminobutyric acid
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: 5 - HT; Chemical: dopamine; Chemical: glutamate; Chemical: gamma - aminobutyric acid