About: http://webisa.webdatacommons.org/266661402

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	In 1831 a new challenge appeared on the horizon; cholera, incurable and its cause unknown, was devastating cities such as London, Edinburgh, and Paris.
http://www.w3.org/ns/prov#wasQuotedFrom	historyofcanadabymetro.com