An array of these hovering wind turbines can be used to generate {HEAD ~ large amounts} of {TAIL ~ energy} 
of
An array of these hovering wind turbines can be used to generate { HEAD ~ large amounts } of { TAIL ~ energy }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL