About: http://webisa.webdatacommons.org/222894133

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http://www.w3.org/ns/prov#value	Have it clear when something is outdated on any level be it a structure or a world and make sure their is a reason to have outdated stuff like pirate worlds, junk worlds, slave worlds, etc it keeps the universe feeling organic.
http://www.w3.org/ns/prov#wasQuotedFrom	gamedev.net