The container 1 further comprising means on {HEAD ~ the vessel wall} to facilitate determination of the amount of liquid within {TAIL ~ the vessel} 
The container 1 further comprising means on { HEAD ~ the vessel wall } to facilitate determination of the amount of liquid within { TAIL ~ the vessel }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL