The three dimensional model may be displayed in {HEAD ~ digital form} on {TAIL ~ a visual display device} of a personal computer 
The three dimensional model may be displayed in { HEAD ~ digital form } on { TAIL ~ a visual display device } of a personal computer
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH