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Like diazepam ( a GABA ( A ) - benzodiazepine ( BZD ) receptor agonist ) , the hypnotic effects of GRPE , GOPE , and their EA fractions were fully inhibited by flumazenil ( a GABA ( A ) - BZD receptor antagonist ) .
 Chemical: GABA; Chemical: benzodiazepine; Chemical: BZD; Chemical: flumazenil; Chemical: GABA; Chemical: BZD
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: benzodiazepine; Chemical: BZD; Chemical: flumazenil; Chemical: GABA; Chemical: BZD