About: http://webisa.webdatacommons.org/291683141

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	So advanced is this system that representatives of police departments from across the United States and other parts of the world have traveled to Pittsburgh to study it.
http://www.w3.org/ns/prov#wasQuotedFrom	post-gazette.com