Read the excerpt from the crab that played with the sea. " before the high and far-off times, o my best beloved, came the time of the very beginnings; and that was in the days when the eldest magician was getting things ready. First he got the earth ready; then he got the sea ready; and then he told all the animals that they could come out and play. And the animals said, ‘o eldest magician, what shall we play at?’ and he said, ‘i will show you. He took the elephantâ€"all-the-elephant-there-wasâ€"and said, ‘play at being an elephant,’ and all-the-elephant-there-was played. He took the beaverâ€"all-the-beaver-there-wasâ€"and said, ‘play at being a beaver,’ and all-the beaver-there-was played. He took the cowâ€"all-the-cow-there-wasâ€"and said, ‘play at being a cow,’ and all-the-cow-there-was played. He took the turtleâ€"all-the-turtle-there-wasâ€"and said, ‘play at being a turtle,’ and all-the-turtle-there-was played. One by one he took all the beasts and birds and fishes and told them what to play at. Based on the details in the excerpt, what is its primary purpose? to inform to describe to persuade to entertain.