The automatic generator includes {HEAD ~ a specification tool} for specifying a set of block descriptions representative of specified portions of {TAIL ~ a database} 
The automatic generator includes { HEAD ~ a specification tool } for specifying a set of block descriptions representative of specified portions of { TAIL ~ a database }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL