About: http://webisa.webdatacommons.org/210557564

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	To provide a basis for the discussions in this article, however, the three different types of extensions are briefly described below.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com