You and Leon have been married for 12 years and you had a beautiful daughter Lisa,she was only 4 years old. But unfortunately, something always comes to an end. Because of quarrels, you eventually got divorced.Lisa stayed to live with you, and Leon often visited her. One evening, when Lisa was already sleeping, there was a knock on the door, you opened it and saw Leon.At first Leon just looked at you for a few seconds, and then said quietly but clearly

-Lisa..she sleeping?