{HEAD ~ A proposition} is to provide a wearable display suitable for enjoying {TAIL ~ contents} including images by plural users simultaneously 
{ HEAD ~ A proposition } is to provide a wearable display suitable for enjoying { TAIL ~ contents } including images by plural users simultaneously
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH