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