!!! This is my pizza ontology.

%%ConceptVisualization 
  @concept: pizza:American
  @excludeNodes: owl:Thing, rdfs:Class, rdf:Resource, owl:Nothing
  @excludeRelations: rdf:type, owl:sameAs, owl:equivalentClass, owl:equivalentProperty, rdfs:subPropertyOf, owl:disjointWith
%


!SPARQL query displaying all pizzas in pizza.owl


%%Sparql
SELECT ?Pizza ?Topping WHERE {
?Pizza rdfs:subClassOf pizza:Pizza .
FILTER (!STRSTARTS(STR(?Pizza), "_")) .
}
ORDER BY ?Pizza
%

%%Ontology 
@import: pizza.owl
%

%%Package pizza