{HEAD ~ A complete data stored ROM} is manufactured by {TAIL ~ partial activation} of predetermined regions responding to the specifications of users 
is manufactured by
{ HEAD ~ A complete data stored ROM } is manufactured by { TAIL ~ partial activation } of predetermined regions responding to the specifications of users
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH