rdf - what makes an OWL class anonymous? -


i reading tutorial says anonymous owl class:

<owl:class rdf:id="reptile">         <rdfs:subclassof rdf:resource="#animal”/>         <rdfs:subclassof rdf:resource="#oxygenuser”/>  </owl :class>

i know anonymous class in java. makes class anonymous in owl? anonymous because not have rdfs:label statement this: <rdfs:label>reptile</rdfs:label> ?

owl anonymous classes classes without name/identifier (uri). it's owl class expression such eats grass or male , female. use such expression in combination named classes create axioms.

example of equivalent classes axioms using both named anonymous classes (comments shown # symbol):

# named class (got dereferencable uri) class: <http://www.example.org/man>  # named class class: <http://www.example.org/woman>  # named class class: <http://www.example.org/human>      # named class human equivalent      # anonymous class (class expression) man or woman     equivalentto: <http://www.example.org/man> or <http://www.example.org/woman>

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