The upper portion 14 can define {HEAD ~ an opening} for filling and {TAIL ~ dispensing} of a commodity stored therein 
for
The upper portion 14 can define { HEAD ~ an opening } for filling and { TAIL ~ dispensing } of a commodity stored therein
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH