About: http://webisa.webdatacommons.org/404383344

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. 12 is a schematic showing the flow of video, audio and data signals from a user interface, through a concentrator (including the switching matrix), to another user interface; and
http://www.w3.org/ns/prov#wasQuotedFrom	google.com