About: http://webisa.webdatacommons.org/253577257

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	shown in the diagram in the opening post, that Neptune is mainly Hydrogen, Helium, Methane, Water, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	abovetopsecret.com