{HEAD ~ a means} for warning generation that issues a warning if an overload state is detected by {TAIL ~ said means} for comparison; and 
{ HEAD ~ a means } for warning generation that issues a warning if an overload state is detected by { TAIL ~ said means } for comparison ; and
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH