Complex sentence: Peros Banhos is a formerly inhabited atoll in the Chagos Archipelago of the British Indian Ocean Territory, with a total area of 503 km², but with a land area of only 13 km² made up by some 32 islets.
Split into simpler sentences: Peros Banhos is a formerly inhabited atoll in the Chagos Archipelago of the British Indian Ocean Territory. The atoll has a total area of 503 km², but a land area of only 13 km², made up by some 32 islets.