About: http://webisa.webdatacommons.org/209028464

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 ruler tool in Google Earth can measure distances in centimeters, yards, miles, and other units.
http://www.w3.org/ns/prov#wasQuotedFrom	realworldmath.org