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