{HEAD ~ The package} 5, wherein {TAIL ~ said sealing} means is a heat seal for closing said open end of said barrier bag 
wherein
{ HEAD ~ The package } 5 , wherein { TAIL ~ said sealing } means is a heat seal for closing said open end of said barrier bag
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH