There was a school with 4 brillant students, who always say that they themselves are correct. Then one day, they are brought to the zoo to see a new animal there. ( Note : They cannot see. ) so each of them feel the animal and
 the first student said : it is as thin as a cane.
the second one said : nono, it is thicker than that.
the third one said : it is as round as a tree trunk.
the last one said : it is hard and flat like a wall.
 then they all argued and said that they were correct. While arguing, they heard a loud trumpet sound. So, can guess already?
 Yes, it's a elelphant. So in the end, all of them are correct and all of them are wrong. The teacher that brounght them there said if they wre to listen to others and put the information together, it will be great.
 So it's something like tt, haha cant rmb totally. da moral of the story is ???