In one example, the apparatus is used by {HEAD ~ a prosthetist} to map the stump of an amputee to properly fit the amputee with {TAIL ~ a prosthetic device} 
In one example , the apparatus is used by { HEAD ~ a prosthetist } to map the stump of an amputee to properly fit the amputee with { TAIL ~ a prosthetic device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL