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