Namespace(rdf	= http://www.w3.org/1999/02/22-rdf-syntax-ns#)
Namespace(xsd	= http://www.w3.org/2001/XMLSchema#)
Namespace(rdfs	= http://www.w3.org/2000/01/rdf-schema#)
Namespace(owl	= http://www.w3.org/2002/07/owl#)
Namespace(a	= http://a.com/ontology#)

Ontology(

 Annotation( owl:imports http://protege.stanford.edu/plugins/owl/protege)


 Class(a:Animal partial)
 Class(a:AnimalBook partial)
 Class(a:Lion partial 
  a:Mammal)
 Class(a:Mammal partial 
  a:Animal)
 Class(owl:Class partial)

 AnnotationProperty(http://purl.org/dc/elements/1.1/subject)

 ObjectProperty(http://purl.org/dc/elements/1.1/subject
  range(owl:Class))

 Individual(a:LionBook
  annotation(http://purl.org/dc/elements/1.1/subject http://a.com/ontology#Lion)
  type(a:AnimalBook))

)