About: http://webisa.webdatacommons.org/425746088

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 markers that you see when you enable editing on a layer are canvas items, as are the lines when drawing a measure line, even the image you see in the canvas is a canvas item, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	nathanw.net