{TAIL ~ A pumping apparatus} actuated by waves in a large body of {HEAD ~ water} for pumping water to a remote location 
{ TAIL ~ A pumping apparatus } actuated by waves in a large body of { HEAD ~ water } for pumping water to a remote location
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH