About: http://webisa.webdatacommons.org/400761294

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	However, there is a problem in that such a system requires employment of a telephone dedicated to the system for both outside and household phones, resulting in increased costs to the system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com