In the FIGURE, the medical ventilator 10 provides {HEAD ~ ventilation} to {TAIL ~ a patient} 12 via a conduit 14 
In the FIGURE , the medical ventilator 10 provides { HEAD ~ ventilation } to { TAIL ~ a patient } 12 via a conduit 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH