About: http://webisa.webdatacommons.org/442220740

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	Devices which teach spelling or other language skills have, in the past, been more difficult to implement.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com