Two tall trees, a birch and a beech, are growing in the woods. A small tree begins to grow between them. The beech says to the birch: Is that a son of a beech or a son of a birch? But the birch says he cannot tell. Just then a woodpecker lands on the sapling. The birch says, Woodpecker, you are a tree expert. Can you tell if that is a son of a beech or a son of a birch? The woodpecker takes a taste of the small tree. He replies: It is neither a son of a beech nor a son of a birch. It is, however, the best piece of ash I have ever put my pecker in!