{HEAD ~ A computerized database management system} for optimizing {TAIL ~ retrieval} of data from a database, comprising: 
for optimizing
{ HEAD ~ A computerized database management system } for optimizing { TAIL ~ retrieval } of data from a database , comprising :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH