{HEAD ~ A suspended ceiling system} including {TAIL ~ a main beam} formed with a vertically extending rectangular window and a pair of cross beams intended to abut the main beam in alignment with one another at the window 
including
{ HEAD ~ A suspended ceiling system } including { TAIL ~ a main beam } formed with a vertically extending rectangular window and a pair of cross beams intended to abut the main beam in alignment with one another at the window
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH