About: http://webisa.webdatacommons.org/310784124

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	They are grouped with Jupiter and Saturn even though Jupiter and Saturn are mostly composed of hydrogen and helium while Uranus and Neptune contain other gases.
http://www.w3.org/ns/prov#wasQuotedFrom	mikebrownsplanets.com