God said to Noah, “Noah, it’s time to build another boat.” Noah said, “Ok, God. Same as before, animals two by two?” God replied, “Actually, no. we forgot the fish last time, so this one will be just for fish, but build it with more than one deck.” Noah checked off the list, “Righto! Big boat, only fish, and built on several levels. Got it!” God added a final requirement, “And one last thing, not just any old fish, I want only carp on this new boat.”
Noah: “Hmmm. So let me get this right. You want a multi storey carp ark?”