Further, {HEAD ~ the present invention} relates to {TAIL ~ a system} that integrates light fixtures with a suspended grid ceiling or a solid ceiling 
Further , { HEAD ~ the present invention } relates to { TAIL ~ a system } that integrates light fixtures with a suspended grid ceiling or a solid ceiling
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH