About: http://webisa.webdatacommons.org/331829023

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	Further, a 1990 amendment to the CAA was made to address problems such as acid rain, ground-level ozone, stratospheric ozone depletion, and air toxics.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr