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Term 1: Term 2:

(=>
    (subclass ?OS WindowsOS)
    (creator ?OS MicrosoftCorporation))
ComputingBrands.kif 61-63
(=>
    (subclass ?OS AndroidOS)
    (creator ?OS AlphabetCorporation))
ComputingBrands.kif 31-33
(=>
    (subclass ?OS AppleIOS)
    (creator ?OS AppleComputerCorporation))
ComputingBrands.kif 91-93


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