{TAIL ~ The pumping units} are actuated by {HEAD ~ float members} which rise and fall responsive to waves in the water body in which the pumping apparatus is disposed 
{ TAIL ~ The pumping units } are actuated by { HEAD ~ float members } which rise and fall responsive to waves in the water body in which the pumping apparatus is disposed
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