About: http://webisa.webdatacommons.org/159955372

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 to be understood that the materials of biological, biochemical or pharmacological interest may have naturally occurring receptors and may also function as haptens when bonded to a receptor or carrier molecule, such as a protein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com