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Corese is a Semantic Web Factory (triple store and SPARQL endpoint) implementing RDF, RDFS, SPARQL 1.1 Query and Update.

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  # OWL 2 RL does not support the predefined properties :
  # owl:topObjectProperty, owl:bottomObjectProperty,
  # owl:topDataProperty, and owl:bottomDataProperty

template {

  ?suc
}
where {

  bind ( not exists { {?x ?p ?y} union {?y ?p ?x} union { ?a ?x ?b } } as ?suc)
  
  filter(st:visit(st:err("properties"), ?x, ?suc))
}
values ?x { 
  owl:topObjectProperty owl:bottomObjectProperty 
  owl:topDataProperty   owl:bottomDataProperty 
}