About: http://webisa.webdatacommons.org/144321937

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	> > You should *not* have to inform the machine that NULL is a pointer.
http://www.w3.org/ns/prov#wasQuotedFrom	postgresql.org