OWL Full

OWL-Full is the most expressive OWL sub-language. It is intended to be used in situations where very high expressiveness is more important than being able to guarantee the decidability or computational completeness of the language. It is therefore not possible to perform automated reasoning on OWL-Full ontologies.

A class (owl:class) is defined as equivalent to an rdfs class (rdfs:class). This enables any valid rdf document to be considered as a valid OWL full document. Similarly, In OWL full, owl:ObjectTypeProperty is considered equivalent to rdf property. DataTypeProperty, which is a subclass of rdf:property, is also a subclass of owl:ObjectTypeProperty. This means that any property in OWL that is defined as datatype can also be interpreted as objectype property. This allows much of the expressiveness in OWL full.