About: http://webisa.webdatacommons.org/289944247

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It is a mixture of principally polysaccharides and proteoglycans, the latter being arabinogalactan-proteins (AGPs).
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov