About: http://webisa.webdatacommons.org/259808250

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	Finally it became too obvious to hide that lead was a major carcinogen, which they knew all along, and leaded gas was phased out in the late 1980s.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com