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In all the world, 共治 (共治) is an extremely rare unknown gender forename.
Gongzhi, Sumio, Tomoaki, Tomoharu, 友張, 友春, 友晴, 友治, 友玄, 大晴, 智大, 智明, 智春, 智晴, 智治, 朋春, 朋治, 朝晴, 朝治, 知春, 知晴, and 知治