About: http://webisa.webdatacommons.org/364070493

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	Navigation devices used by blind people today lack the ability to operate indoors and other areas where GPS is not available, and are unable to help the user deal with items that are not part of maps, such ...
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org