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However , this inhibition was reversed by the GABAA antagonist bicuculline but not by the GABAB antagonist phaclofen .
 Chemical: bicuculline; Chemical: phaclofen
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: bicuculline; Chemical: phaclofen