2177
Survival was presumed to be due to immediate alleviation of the cholinergic crisis by the conventional pharmacological treatment drugs , in conjunction with bioscavenger that prevented further absorbed agent reaching the AChE targets .
 None
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:  
Answer:
 None