About: http://webisa.webdatacommons.org/81671379

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 one approach, the glasses include a semi-passive RFID tag, a battery and a speaker, such as a beeper.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr