{HEAD ~ Computer} 36 may also automatically activate the conventional alarm 32 to alert the drilling operator to {TAIL ~ the occurrence} of a kick 
{ HEAD ~ Computer } 36 may also automatically activate the conventional alarm 32 to alert the drilling operator to { TAIL ~ the occurrence } of a kick
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH