About: http://webisa.webdatacommons.org/129761352

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	Cities such as London face three environmental and social challenges.
http://www.w3.org/ns/prov#wasQuotedFrom	worldchanging.com