a body for being mounted to said container around said container opening and defining {HEAD ~ an access aperture} for {TAIL ~ access} to said container opening 
for
a body for being mounted to said container around said container opening and defining { HEAD ~ an access aperture } for { TAIL ~ access } to said container opening
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH