About: http://webisa.webdatacommons.org/454035883

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	In the past, the only way to make diagrams and other graphic images accessible for blind persons was to copy them by hand using a tracing wheel which produced a line of fine raised dots.
http://www.w3.org/ns/prov#wasQuotedFrom	fhda.edu