About: http://webisa.webdatacommons.org/181189684

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	The key word is extensible: XL can safely be extended through libraries and compiler plug-ins, in ways that are very difficult or limited with languages such as C++ or Java.
http://www.w3.org/ns/prov#wasQuotedFrom	sourceforge.net