Since a Kind is a special type of Classifier, it can be used as a parent class for other subclasses. In other words, it can be a supertype for other subconcepts in the ontology. However, according to the OntoUML specification, a Kind cannot have any other superclasses. Therefore, a Kind can only be a direct or indirect supertype of other subclasses, but it cannot have any supertypes of its own.
According to the OntoUML grammar, a Kind can be used as a supertype for subconcepts in an ontology, but it cannot have any supertypes of its own.
Since a Kind is a special type of Classifier, it can be used as a parent class for other subclasses. In other words, it can be a supertype for other subconcepts in the ontology. However, according to the OntoUML specification, a Kind cannot have any other superclasses. Therefore, a Kind can only be a direct or indirect supertype of other subclasses, but it cannot have any supertypes of its own.
According to the OntoUML grammar, a Kind can be used as a supertype for subconcepts in an ontology, but it cannot have any supertypes of its own.