About: http://webisa.webdatacommons.org/201578825

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	Using the Ruler tool or a selection tool, you can measure any defined area, including irregular areas selected with the lasso, quick select, or magic wand tools.
http://www.w3.org/ns/prov#wasQuotedFrom	cadalyst.com