About: http://webisa.webdatacommons.org/131395143

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 addition to manmade sources, natural processes, such as brush and forest fires, produce dioxins.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com