15841
This structure is similar to that of the core oligosaccharide of P . shigelloides strains 302 - 73 ( serotype O1 ) and 7 - 63 ( serotype O17 ) and differs from these only by one sugar residue .
 Chemical: sugar
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: sugar