About: http://webisa.webdatacommons.org/228005440

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	Cleaning up your documents is a matter of conforming to certain standards defined by XHTML. HTML in itself is not directly derived from XML, so to get the content into XHTML format, you must follow a set of rules.
http://www.w3.org/ns/prov#wasQuotedFrom	drdobbs.com