Human: Write a detailed description of a uplifting scene inside a mansion with stonework, doors, an ogee arch, and a mosaic. Assistant: 
High above, the vaulted ceiling is a domed expanse of brilliant blue, a mosaic of millions upon millions of pieces of tiny glaes squares. The tilework continues down the walls, stopping halfway to meet smoothed silvered stonework. An immense ogee arch is flanked by two smaller doors. Starlight streams through the well of a stone staircase.