A cover is provided to fit within the mouth at {HEAD ~ the top} of {TAIL ~ the vessel} 
of
A cover is provided to fit within the mouth at { HEAD ~ the top } of { TAIL ~ the vessel }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL