About: http://webisa.webdatacommons.org/284459731

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	It was believed that dark markings were vegetation such as lichens ??? and Man wondered whether intelligent beings might inhabit the planet too.
http://www.w3.org/ns/prov#wasQuotedFrom	skymania.com