29296
IGABA modulation by piperine did not require the presence of a gamma 2S - subunit , suggesting a binding site involving only alpha and beta subunits .
 Chemical: piperine
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: piperine