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Term 1: Term 2:

(=>
    (instance ?C ElectricalConductor)
    (exists (?S)
        (and
            (subclass ?S ConductorSubstance)
            (material ?S ?C))))
engineering.kif 1139-1144
(=>
    (instance ?BERG Iceberg)
    (exists (?SHEET)
        (and
            (subclass ?SHEET Glacier)
            (holdsDuring
                (ImmediatePastFn
                    (WhenFn ?BERG))
                (material ?SHEET ?BERG)))))
Geography.kif 4972-4980
(=>
    (instance ?COIN CurrencyCoin)
    (exists (?METAL)
        (and
            (subclass ?METAL Metal)
            (material ?METAL ?COIN))))
Mid-level-ontology.kif 4043-4048
(=>
    (and
        (instance ?SKI SnowSki)
        (material ?MAT ?SKI))
    (or
        (subclass ?MAT Metal)
        (subclass ?MAT Wood)
        (subclass ?MAT Plastic)))
Sports.kif 1054-1061
(=>
    (instance ?I ResistorElement)
    (exists (?S)
        (and
            (subclass ?S InsulatorSubstance)
            (material ?S ?I))))
engineering.kif 1168-1173
(=>
    (instance ?SHOT FirearmShot)
    (exists (?C ?P ?CLASS ?X)
        (and
            (instance ?C Collection)
            (member ?P ?C)
            (instance ?P ?CLASS)
            (subclass ?CLASS SphericalObject)
            (approximateDiameter ?P
                (MeasureFn ?X Millimeter))
            (modalAttribute
                (and
                    (material ?CLASS Lead)
                    (lessThan ?X 10)) Likely))))
Mid-level-ontology.kif 1150-1163
(=>
    (instance ?OBJ CorpuscularObject)
    (exists (?SUBSTANCE1 ?SUBSTANCE2)
        (and
            (subclass ?SUBSTANCE1 Substance)
            (subclass ?SUBSTANCE2 Substance)
            (material ?SUBSTANCE1 ?OBJ)
            (material ?SUBSTANCE2 ?OBJ)
            (not
                (equal ?SUBSTANCE1 ?SUBSTANCE2)))))
Merge.kif 1241-1249
(=>
    (instance ?CF CharcoalFilter)
    (exists (?C)
        (and
            (subclass ?C Charcoal)
            (material ?C ?CF))))
Cars.kif 1695-1700


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