About: http://webisa.webdatacommons.org/43753669

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	I would merge these two, so that you only pass in FDname to the factory, and the factory can decide whether this is a builtin or a custom.
http://www.w3.org/ns/prov#wasQuotedFrom	apache.org