About: http://webisa.webdatacommons.org/378385431

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	An ad server may receive bids, including a first bid from a first software agent representing a guaranteed contract and a second bid from a second software agent representing a nonguaranteed contract.
http://www.w3.org/ns/prov#wasQuotedFrom	faqs.org