About: http://webisa.webdatacommons.org/3574599

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	sand and limestone 300 million years old is a mystery even more vexing today than at the time of the original discovery.
http://www.w3.org/ns/prov#wasQuotedFrom	abovetopsecret.com