About: http://webisa.webdatacommons.org/50386172

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 is required that industrial systems such as chemical or steel plants, traffic control systems, and power systems including nuclear power plants, always be controlled correctly.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com