A display system having {HEAD ~ a plurality} of {TAIL ~ wearable displays}, the display system comprising: 
of
A display system having { HEAD ~ a plurality } of { TAIL ~ wearable displays } , the display system comprising :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH