Complex sentence: Apart from its coastline with the South China Sea, it is completely surrounded by the state of Sarawak, Malaysia; and it is separated into two parts by the Sarawak district of Limbang.
Split into simpler sentences: Apart from its coastline with the South China Sea, the country is completely surrounded by the state of Sarawak, Malaysia. It is separated into two parts by the Sarawak district of Limbang.