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In an effort to understand the shedding process of AChE , we have used several pharmacological treatments , which showed that it is likely to be mediated in part by an EDTA - and batimastat - sensitive , but GM6001 - insensitive metalloprotease , with the possible additional involvement of a thiol isomerase .
 Chemical: EDTA; Chemical: batimastat; Chemical: GM6001; Chemical: thiol
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: EDTA; Chemical: batimastat; Chemical: GM6001; Chemical: thiol