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