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As functionalized chitosans hold great potential for the development of effective and broad - spectrum antibiotics , representative chitosan derivatives were tested for antimicrobial activity in neutral media : trimethyl chitosan ( TMC ) , carboxy - methyl chitosan ( CMC ) , and chitosan - thioglycolic acid ( TGA ; medium molecular weight : MMW - TGA ; low molecular weight : LMW - TGA ) .
 Chemical: trimethyl; Chemical: carboxy - methyl; Chemical: thioglycolic acid; Chemical: TGA; Chemical: TGA; Chemical: TGA
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: trimethyl; Chemical: carboxy - methyl; Chemical: thioglycolic acid; Chemical: TGA; Chemical: TGA; Chemical: TGA