The cover has {HEAD ~ an outlet duct} so that when one of the valves in the lower surface of the cover is opened the beverage can be dispensed through {TAIL ~ the outlet duct} from a corresponding chamber in the vessel 
The cover has { HEAD ~ an outlet duct } so that when one of the valves in the lower surface of the cover is opened the beverage can be dispensed through { TAIL ~ the outlet duct } from a corresponding chamber in the vessel
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH