2802
Its mechanism of action is not well understood although it has been proposed that lindane acts as a non - competitive antagonist at the gamma - aminobutyric acid ( GABA ) - A receptor .
 Chemical: lindane; Chemical: gamma - aminobutyric acid; Chemical: GABA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: lindane; Chemical: gamma - aminobutyric acid; Chemical: GABA