{TAIL ~ The packaging} comprises {HEAD ~ two generally hollow half shells} connected to each other in face to face relationship along their associated mouth edges 
{ TAIL ~ The packaging } comprises { HEAD ~ two generally hollow half shells } connected to each other in face to face relationship along their associated mouth edges
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH