About: http://webisa.webdatacommons.org/113120368

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	They include the lines of the linear barrier, natural elements such as the sea and rivers, networks of military installations, and ancillary features such as roads on, behind and beyond the Frontier.
http://www.w3.org/ns/prov#wasQuotedFrom	unesco.org