{TAIL ~ The control unit} can further identify {HEAD ~ those programs} that are not capable of being restored to their original condition and accordingly canceling any program execution when such a condition is judged 
{ TAIL ~ The control unit } can further identify { HEAD ~ those programs } that are not capable of being restored to their original condition and accordingly canceling any program execution when such a condition is judged
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH