Why are Right Lung and Left Lung subclasses of Lung?
Right lung and left lung are subclasses of lung because the authors of the Foundational Model of Anatomy ontology wanted the class lung to exist without the consideration of laterality. Because lung is an abstraction of both right and left lung queries run on the abstracted class lung will return results pertaining to what both lungs have in common. In this model narrowing or abstracting queries is possible. Creating abstractions of terms also helps the authors organize and model information.
