23870
Electrophysiological evidence for 4 - isobutyl - 3 - isopropylbicyclophosphorothionate as a selective blocker of insect GABA - gated chloride channels .
 Chemical: 4 - isobutyl - 3 - isopropylbicyclophosphorothionate; Chemical: GABA; Chemical: chloride
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: 4 - isobutyl - 3 - isopropylbicyclophosphorothionate; Chemical: GABA; Chemical: chloride