Somebody tell me a joke! ? Just brainstorm! How I want to be happy!

Once upon a time, there was a horse. It ran into the sea. So, it becomes a "hippocampus"! Another friend of this horse fell into the river in order to find the horse that fell into the sea. Later it became a "hippo"! The third horse is a white one. In order to find two missing friends, it came to a city with chaotic traffic. I was run over by several cars in a row, resulting in several black stripes on the car body. Turns out to be a zebra. One day, the fourth horse went to a factory to find the companions of the first three horses and was transformed into an "iron horse". But later, those horses could not escape the fate of being eaten, and all of them were made into "Shaqima". All the horses survived and became a world without horses ... Then, a group of people could not help but say "the horses are really cold" after seeing this joke. Finally, in order to commemorate this joke, someone edited it into a class, and we called it "Marseille class"!