About: http://webisa.webdatacommons.org/59503366

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 best thing about them is that ???. you guessed it ???.. they are FREE! :-) (although there seems to be plans to release curriculum packs you can purchase in the future)
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com