About: http://webisa.webdatacommons.org/268963513

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	Until recently, the nature of this improvement was merely intuitive and all but invisible to scientists and other observers.
http://www.w3.org/ns/prov#wasQuotedFrom	wsj.com