{TAIL ~ A work station system} comprises {HEAD ~ a frame substructure} for holding aloft a horizontal axial shaft 
{ TAIL ~ A work station system } comprises { HEAD ~ a frame substructure } for holding aloft a horizontal axial shaft
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH