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