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Surname Sumio (Sumio
, 澄夫
, Сумио
) , throughout the world, is quite a rare family name. The last name Sumio is habitual in Japan, where it is quite a rare surname, Philippines, where it is a rare surname, and Singapore. Not in comparison with a country's population, it is commonest in Japan, Philippines, and China. More prevalently, Sumio is the forename as well as the last name.
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