8916
Conversely , addition of the GABA ( A ) R antagonist bicuculline ( BIC ; 1 mu g / g ) moderately ( p < 0 . 05 ) enhanced Pb - dependent behavioral and neurodegenerative actions .
 Chemical: GABA; Chemical: bicuculline; Chemical: BIC; Chemical: Pb
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: GABA, bicuculline, BIC, Pb 
Answer:
 Chemical: GABA; Chemical: bicuculline; Chemical: BIC; Chemical: Pb