About: http://webisa.webdatacommons.org/125323260

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	So the most important thing is to understand or be prepared to learn as much as you can about the underlying system and software - in your case Postgres and some flavor of *nix.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com