1174
Compounds that act as positive allosteric modulators at GABA ( A ) alpha 5 receptors might be useful in targeting this condition because GABA ( A ) alpha 5 receptors mediate tonic inhibition of principal neurons in the affected network .
 Chemical: GABA; Chemical: GABA
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: GABA; Chemical: GABA