About: http://webisa.webdatacommons.org/405618734

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	A hundred years ago, scientists didn't know where the oxygen, silicon, iron, and other heavy elements that make up Earth came from.
http://www.w3.org/ns/prov#wasQuotedFrom	stardate.org