December

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(dateEstablished WorldCustomsOrganization
    (DayFn 15
        (MonthFn December
            (YearFn 1950))))		 Government.kif 3055-3055 天 15 and 月 December and 年 1950 是 世界海關組織 的成立 date
(equal WinterSeason
    (RecurrentTimeIntervalFn December February))		 Geography.kif 1667-1667 等於 冬季 and 經常性時間間隔 December and February
(subclass ChristmasDay
    (DayFn 25 December))		 Media.kif 337-337 子類 ChristmasDay and 天 25 and December


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