About: http://webisa.webdatacommons.org/252340916

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 methods and systems of this invention are a supplement to, or an enhancement of, a person's natural ability to navigate, rather than a substitute for any one or more senses.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr