{HEAD ~ The female die} has {TAIL ~ a cavity}, whose wall has a bottom portion and a top portion 
{ HEAD ~ The female die } has { TAIL ~ a cavity } , whose wall has a bottom portion and a top portion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH