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The amphiphilicity of the carbohydrate was achieved by incorporation of an alkyl chain at the C - 6 position of the carbohydrate thus also rendering the homoglycopolypeptide amphiphilic .
 Chemical: carbohydrate; Chemical: alkyl; Chemical: carbohydrate
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: carbohydrate; Chemical: alkyl; Chemical: carbohydrate