About: http://webisa.webdatacommons.org/451396008

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 London and other areas where coal is the principal fuel used, London type smog blankets the city at night or on foggy days when the temperature drops below 500 F and the air is stagnant.
http://www.w3.org/ns/prov#wasQuotedFrom	emporia.edu