About: http://webisa.webdatacommons.org/25180268

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	where R is a substrate group as defined above, and M is an insoluble matrix, i.e., any insoluble material capable of covalent bonding with said substrate and which does not interfere with the biological activity of the substrate.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com