About: http://webisa.webdatacommons.org/56949288

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	Also you should have a timer which deletes servers from the master server which have not sent a heartbeat for for example a minute.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com