The platform 186 is {TAIL ~ a substantially flat member} with {HEAD ~ the separator} 188 attached to its upper surface 
The platform 186 is { TAIL ~ a substantially flat member } with { HEAD ~ the separator } 188 attached to its upper surface
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH