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Even though total soluble protein quantity vary , the data observed from the protein profiles of sodium dodecyl sulphate - polyacrylamide gel electrophoresis ( SDS - PAGE ) showed that there was a little differentiation between band profiles of treated samples and control group .
 Chemical: sodium dodecyl sulphate; Chemical: polyacrylamide; Chemical: SDS
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: sodium dodecyl sulphate, polyacrylamide, SDS 
Answer:
 Chemical: sodium dodecyl sulphate; Chemical: polyacrylamide; Chemical: SDS