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In page Ainu people:

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As of 2015, the North Kuril Ainu of Zaporozhye form the largest Ainu subgroup in Russia. The Nakamura clan (South Kuril Ainu on their paternal side), the smallest group, numbers just six people residing in Petropavlovsk. On Sakhalin Island, a few dozen people identify themselves as Sakhalin Ainu, but many more with partial Ainu ancestry do not acknowledge it. Most of the 888 Japanese people living in Russia (2010 Census) are of mixed Japanese–Ainu ancestry, although they do not acknowledge it (full Japanese ancestry gives them the right of visa-free entry to Japan[4]). Similarly, no one identifies themselves as Amur Valley Ainu, although people of partial descent live in Khabarovsk. There is no evidence of living descendants of the Kamchatka Ainu.[citation needed]