The cover may be in the form of a lampshade including {HEAD ~ a body} with an exterior surface and {TAIL ~ an interior surface} 
with
The cover may be in the form of a lampshade including { HEAD ~ a body } with an exterior surface and { TAIL ~ an interior surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL