The transfer spigot has a membrane which seals {HEAD ~ the interior} of {TAIL ~ the liner} 
of
The transfer spigot has a membrane which seals { HEAD ~ the interior } of { TAIL ~ the liner }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL