{TAIL ~ The processing system} 1 then operates to extract {HEAD ~ content} from the data file, storing the content in the database 2 
{ TAIL ~ The processing system } 1 then operates to extract { HEAD ~ content } from the data file , storing the content in the database 2
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH