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