| http://www.w3.org/ns/prov#value | - FIGS. 2 and 3 are merely illustrative of the types of components that can be present in a recording unit according to the invention. [0064] The recording unit 300 includes a system controller 301, a visual data acquisition device 302, an audio data acquisition device 303, a data processing device 304, a data storage device 305, a visual recording display device 306, an audio recording display devi
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