{HEAD ~ The cover} has {TAIL ~ 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 the outlet duct from a corresponding chamber in the vessel 
has
{ HEAD ~ The cover } has { TAIL ~ 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 the outlet duct from a corresponding chamber in the vessel
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH