What is the question aased to the prince in the play the ugly duckling by AA Milne?

Oh, dude, in "The Ugly Duckling" by A.A. Milne, the question asked to the prince is about the identity of the ugly duckling. The prince is asked to guess what the ugly duckling will turn into, hinting at its true identity as a swan. Like, it's all about that classic ugly duckling transformation, you know?