Complex sentence: Japan regards the islands as a part of the city of Ishigaki in Okinawa Prefecture, and acknowledges neither the claims of China nor Taiwan but has not allowed the Ishigaki administration to develop the islands.
Split into simpler sentences: Japan regards the islands as a part of the city of Ishigaki in Okinawa Prefecture. Japan acknowledges neither the claims of China nor Taiwan but has not allowed the Ishigaki administration to develop the islands.