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Pinnacle Islands:see Senkaku IslandsSenkaku Islands
, small, uninhabited island group, 8 sq mi (20.7 sq km), Okinawa prefecture, extreme SW Japan, in the East China Sea. Located 90 mi (45 km) NNW of Ishigaki in the Ryukyu Islands, the group comprises five generally low-lying coral islands and scattered islets.
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