controlling, by the display apparatus, at least one of {HEAD ~ the size} and position of {TAIL ~ the displayed entity} according to the first control signal 
of
controlling , by the display apparatus , at least one of { HEAD ~ the size } and position of { TAIL ~ the displayed entity } according to the first control signal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH