{HEAD ~ The body} includes {TAIL ~ a tapered side wall} having an inner face or surface and an outer face or surface 
includes
{ HEAD ~ The body } includes { TAIL ~ a tapered side wall } having an inner face or surface and an outer face or surface
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH