{HEAD ~ Embodiments} of {TAIL ~ the present invention} pertain to a foot based interface for interacting with a computer 
{ HEAD ~ Embodiments } of { TAIL ~ the present invention } pertain to a foot based interface for interacting with a computer
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH