About: http://webisa.webdatacommons.org/334725220

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 will, of course, be appreciated that such detector units may be placed in locations other than at doorways.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com