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or the entire glossary.
Is an Instance Of (basic relationship type) Title of this Item
is_instance_of Name of this Item
This relationship is used to connect one item with a second item representing the class of which the first item is a member. For example, the connection "QueenMary is_instance_of Ships" states that the Queen Mary is a ship, and allows the system to apply all of the rules that pertain to instances of "Ships" to the "QueenMary" item, and allows the "QueenMary" item to be referenced from contexts that require a member of "Ships". # fundamental property classes; the root of the property universe Description of this Item