About: http://webisa.webdatacommons.org/308749853

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	One or more detectors may be provided in a card, for example, to sense the presence of an external object, such as a person or device, which in turn, may trigger the initiation of a communication sequence with the external object.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com