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