About: http://webisa.webdatacommons.org/405836792

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	The Greeks and other astronomers of old were aware of five planets in the nighttime sky--Mercury, Venus, Mars, Jupiter, and Saturn.
http://www.w3.org/ns/prov#wasQuotedFrom	on.br