18990
The lipid A moiety of Escherichia coli lipopolysaccharide is a hexaacylated disaccharide of glucosamine phosphorylated at the 1 - and 4 ' - positions .
 Chemical: lipid A; Chemical: hexaacylated disaccharide; Chemical: glucosamine
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: lipid A; Chemical: hexaacylated disaccharide; Chemical: glucosamine