About: http://webisa.webdatacommons.org/446332068

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	Valles Marineris is the largest known canyon in the solar system, as long as the distance from California to New York.
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov