23872
The antagonism of GABACls and GluCls by 4 - isobutyl - 3 - isopropylbicyclophosphorothionate ( PS - 14 ) was examined in cultured cockroach and rat neurons using a whole - cell patch - clamp method .
 Chemical: 4 - isobutyl - 3 - isopropylbicyclophosphorothionate; Chemical: PS - 14
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: PS - 14