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Term 1: Term 2:

(=>
    (and
        (commemoratesDate ?HOLIDAY
            (DayFn ?DAY
                (MonthFn ?MONTH
                    (YearFn ?YEAR))))
        (instance ?DATE ?HOLIDAY)
        (subclass ?HOLIDAY FixedHoliday)
        (lessThanOrEqualTo ?YEAR ?LATER-YEAR))
    (instance ?DATE
        (DayFn ?DAY
            (MonthFn ?MONTH
                (YearFn ?LATER-YEAR)))))
Government.kif 619-625


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