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Term 1: Term 2:

(=>
    (instance ?BERG Iceberg)
    (exists (?SHEET)
        (and
            (subclass ?SHEET Glacier)
            (holdsDuring
                (ImmediatePastFn
                    (WhenFn ?BERG))
                (material ?SHEET ?BERG)))))		 Geography.kif 4802-4810
(subclass Iceberg Ice) Geography.kif 4792-4792
(subclass Iceberg SelfConnectedObject) Geography.kif 4793-4793


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