undefined-slot-check.rq

#TODO
#+ description: report all unknown slots

prefix : <https://w3id.org/biolink/biolinkml/meta/> 
prefix skos: <http://www.w3.org/2004/02/skos/core#>
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT DISTINCT ?s ?p ?o ?cls ?scheme
WHERE {
  ?s ?p ?o .
  {
    {?s rdf:type ?cls }
    UNION
    {?s ?typePred ?cls .
     ?typePred (:is_a|:mixin)* ?typePredInf .
     ?typePredInf :slot_uri rdf:type
    }
  }
  ?cls a :ClassDefinition .
  ?cls skos:inScheme ?scheme
  
  FILTER( NOT EXISTS { ?p a :SlotDefinition} ) 
  FILTER( !isBlank(?s) )
}