Swims

swims upstream swims the Thames swims the Tiber swims with sharks swims like a fish swim the Thames swim the Tiber swim with sharks swim upstream swim like a fish if it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck if it looks like a duck, swims like a duck, and quacks like a duck, then it's probably a duck when I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck if it looks like a duck polar bear swims