About: http://webisa.webdatacommons.org/423996868

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	Dense elements, metals such as iron, fell to the center, or core while less dense, rocky materials floated on top of it.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com