Because the puppy's house is just below the rabbit's house on the left, and the puppy's house is just south of the rabbit's house on the west;
Because the little monkey's house is on the left under the little rabbit's house, the little monkey's house is in the southwest of the little rabbit's house;
Because the kitten's house is directly below the rabbit's house, and the kitten's house is directly south of the rabbit's house;
Because the duckling's home is below the rabbit's home on the right, the duckling's home is in the southeast of the rabbit's home.
(2) As shown in the following figure: If you follow the route shown by the arrow, you can send the letter without repeating the route.
The route for the bird to deliver the letter is: the home of the little monkey-the home of the puppy-the home of the rabbit-the home of the pig-the home of the duckling-the home of the kitten;
Or conversely, the kitten's home-the duckling's home-the piglet's home-the rabbit's home-the puppy's home-the monkey's home.