Thus says the Lord, “By this you shall know that I am the Lord: behold, with the staff that is in my hand I will strike the water that is in the Nile Danube, and it shall turn into blood. The fish in the Nile Danube shall die, and the Nile Danube will stink, and the Egyptians Germans, Austrians, Slovakians, Hungarians, Croatians, Serbians, Romanians, Bulgarians, Moldovans, and Ukrainians will grow weary of drinking water from the Nile Danube.”
If Johann Strauss Jr. says the Danube is blue, than by gum it shall be blue.
To say otherwise is de-Nile.