28960
In this work we used RcLPS ( consisting of lipid A plus the first seven sugars of the core polysaccharide ) from a rough strain of E . coli to form stable monolayers of LPS at the air - liquid interface .
 Chemical: lipid A; Chemical: sugars
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: lipid A, sugars 
Answer:
 Chemical: lipid A; Chemical: sugars