10242
This study provides evidence that the effects of GABA ( B ) receptor - positive modulators are not identical to those of GABA ( B ) receptor agonists .
 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