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Relation: subclass

direct-childrendocumentationgraph
Device1147A Device is an Artifact whose purpose is to serve as an instrument in a specific subclass of ...^
    WritingDevice1A Device whose purpose is to be an instrument of Writing, e.g. pens, pencils, crayons, etc.^
        Pencil.A WritingDevice that consists of an encased piece of graphite.^

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