Complex sentence: The basement of the keep has an area of 385 m 2 (4,144 ft 2), and the interior of the keep contains special facilities that are not seen in other castles, including lavatories, a drain board, and a kitchen corridor.
Split into simpler sentences: The basement of the keep has an area of 385 m 2 (4,144 ft 2). The interior of the keep contains special facilities that are not seen in other castles, including lavatories, a drain board, and a kitchen corridor.