About: http://webisa.webdatacommons.org/333329542

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	> What I really need is a good reference. The only I have, PostgreSQL by Korry
http://www.w3.org/ns/prov#wasQuotedFrom	postgresql.org