About: http://webisa.webdatacommons.org/154709855

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	That particular post is a joke, but later on they mention that it comes from the term Big Wheel, or important person (AKA sys admin) back in the DEC big iron days.
http://www.w3.org/ns/prov#wasQuotedFrom	vectorlinux.com