{TAIL ~ Data sets} from the online transaction processing system may be received into {HEAD ~ the data warehouse}, where the received data sets are filtered 
{ TAIL ~ Data sets } from the online transaction processing system may be received into { HEAD ~ the data warehouse } , where the received data sets are filtered
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH