About: http://webisa.webdatacommons.org/217794086

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	It could be that it blocks the traffic you sent the request on or the host is offline.Basically the route to the host is good, but the host is down or simply does not want to respond.
http://www.w3.org/ns/prov#wasQuotedFrom	ethicalhacker.net