Complex sentence: The Plaines d'inondation des Bahr Aouk et Salamat Ramsar Site has an area of 49,220 sqkm (one of the world's largest) and was established on 1 June 2006; it is situated in a natural depression bordering the Central Africa Republic.
Split into simpler sentences: The Plaines d'inondation des Bahr Aouk et Salamat Ramsar Site has an area of, making it one of the world's largest. It was established on 1 June 2006 and is situated in a natural depression bordering the Central Africa Republic.