About: http://webisa.webdatacommons.org/143841155

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	If the message is a "sign-off message from a particular workstation, then the on-line status of this workstation is deleted.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com