About: http://webisa.webdatacommons.org/73743805

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	Such systems require a sophisticated network which may not survive a catastrophic event such as an explosion or mine collapse.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com