About: http://webisa.webdatacommons.org/271674360

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	Much research has been carried out in order to manage structured documents such as SGML documents and to provide powerful query facilities which exploit document structures as well as document contents.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu