About: http://webisa.webdatacommons.org/199415865

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	Volcanic vents shift their position; there was a time when Etna was not a burning mountain, and the time will come when it will cease to burn.
http://www.w3.org/ns/prov#wasQuotedFrom	darwin-online.org.uk