9413
Chondroitin sulfate ( CS ) is a natural glycosaminoglycan , formed by the 1 - 3 linkage of d - glucuronic acid to N - acetylgalactosamine , present in the extracellular matrix .
 Chemical: sulfate; Chemical: d - glucuronic acid; Chemical: N - acetylgalactosamine
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: sulfate; Chemical: d - glucuronic acid; Chemical: N - acetylgalactosamine