{HEAD ~ The control system} uses {TAIL ~ the output} of the subareas for controlling the luminaire light output 
uses
{ HEAD ~ The control system } uses { TAIL ~ the output } of the subareas for controlling the luminaire light output
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH