About: http://webisa.webdatacommons.org/360872453

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	Mars' surface area is about 29% that of the Earth's, an area comparable to that of all the continents combined, including Antarctica.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com