A display control unit controls {HEAD ~ display} of {TAIL ~ the data} processed by data processing unit on a display terminal 
of
A display control unit controls { HEAD ~ display } of { TAIL ~ the data } processed by data processing unit on a display terminal
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH