PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chitosan is a natural product derived from chitin, a polysaccharide found in the exoskeleton of shellfish such as shrimp or crabs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com