About: http://webisa.webdatacommons.org/250358807

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	A typical building security system comprises various devices which limit access to the building to only individuals who possess a proper access code or access device, such as a key card.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca