Complex sentence: As with all of the Spratly Islands, the ownership of the atoll is disputed, but it is controlled by Malaysia and claimed by the People's Republic of China, Republic of China (Taiwan) and Vietnam.
Split into simpler sentences: As with all of the Spratly Islands, the ownership of the atoll is disputed. It is controlled by Malaysia, and claimed by the People's Republic of China, the Republic of China (Taiwan) and Vietnam.