About: http://webisa.webdatacommons.org/13849264

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	This service was available for all attendees except Exhibits Plus registrants who did not purchase merchandise with their registration form.
http://www.w3.org/ns/prov#wasQuotedFrom	siggraph.org