13473
We also suggest that the conformational mobility allow HI - 6 to reactivate conjugates of cyclosarin and Russian VX while a reduced mobility in tabun conjugated AChE results in steric hindrance that prevents efficient reactivation .
 Chemical: HI - 6; Chemical: cyclosarin; Chemical: Russian VX; Chemical: tabun
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: HI - 6; Chemical: cyclosarin; Chemical: Russian VX; Chemical: tabun