{TAIL ~ The thin flat plate} has {HEAD ~ two flat surfaces} substantially encapsulated by a refractory wedge 
{ TAIL ~ The thin flat plate } has { HEAD ~ two flat surfaces } substantially encapsulated by a refractory wedge
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH