About: http://webisa.webdatacommons.org/147556206

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	When you subscribe to a service, that service will send messages with the notifications, therefore, our service will need something to receive those messages, in a sort of stack that holds those messages.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com