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