About: http://webisa.webdatacommons.org/400346711

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	Contours also may be created using a graphics control device such as a mouse to either trace a pixel image directly from a screen display or to define an area of the image for autocontouring.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com