About: http://webisa.webdatacommons.org/420210454

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	In case you are using a Linux version other than Ubuntu, or if you are afflicted by the bug mentioned above, you can instead compile grcompiler from sources.
http://www.w3.org/ns/prov#wasQuotedFrom	sourceforge.net