The alarm means directs {HEAD ~ at least one stimulus} to {TAIL ~ the patient} for alerting and waking the patient 
to
The alarm means directs { HEAD ~ at least one stimulus } to { TAIL ~ the patient } for alerting and waking the patient
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH