About: http://webisa.webdatacommons.org/361172701

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	Claims that a product is available only from one source, especially if you must pay in advance
http://www.w3.org/ns/prov#wasQuotedFrom	cancer.org