The display of a human figure is changed based on a change in {HEAD ~ viewpoint/orientation} of {TAIL ~ the device} 
of
The display of a human figure is changed based on a change in { HEAD ~ viewpoint / orientation } of { TAIL ~ the device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL