About: http://webisa.webdatacommons.org/152682771

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	And there are several aspects involved, absolute distance estimation (how far away?), relative placement, (which objects are further away than others?), and velocity estimation (how fast is an object approaching or receding?)
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org