About: http://webisa.webdatacommons.org/391862946

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	Creating a perfect digital braille book, particularly with subjects such as math, still requires a great deal of human preparation and is therefore very expensive.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com