PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the 1980s, voice evacuation technology was added to fire alarm systems and the technology has continued to develop to the point where today's university or corporate security chief can choose a myriad of solutions, such as digital signage, cellphone text alerts and computer pop-ups, to create a comprehensive system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • securityinfowatch.com