About: http://webisa.webdatacommons.org/447377413

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	Athens built a long wall to protect its inhabitants, but the wall helped to facilitate the spread of a plague that killed about 30,000 Athenians, including Pericles.
http://www.w3.org/ns/prov#wasQuotedFrom	newworldencyclopedia.org