About: http://webisa.webdatacommons.org/22503189

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 most useful of these sources are often found on-line at Web sites published by ShortCourses.com, manufacturers, digital photography organizations, and others.
http://www.w3.org/ns/prov#wasQuotedFrom	shortcourses.com