About: http://webisa.webdatacommons.org/168389291

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	FIG. 1B is a block diagram of a computer apparatus for using the data on the event data file medium to determine the location and time of the event;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com