About: http://webisa.webdatacommons.org/138513770

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	his special operator task may be required whenever communications with a net station is lost, or at risk of being lost, due to distance or physical obstacles such as hills and mountains.
http://www.w3.org/ns/prov#wasQuotedFrom	readbag.com