About: http://webisa.webdatacommons.org/144517834

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	From Copernicus on down to the turn of the 19th century, anything (other than comets) that orbited the Sun was a planet -- even moons were planets" in some astronomical writings for a while.
http://www.w3.org/ns/prov#wasQuotedFrom	unmannedspaceflight.com