cacontology-prevention:PreventionEffectivenessValidationShape leaf node

@prefix cacontology-prevention: <https://cacontology.projectvic.org/prevention#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
cacontology-prevention:PreventionEffectivenessValidationShape a sh:NodeShape ;
    rdfs:label "Prevention Effectiveness Validation Shape"@en ;
    rdfs:comment "Validates prevention program effectiveness metrics."@en ;
    sh:sparql [ sh:message "Large prevention programs should have effectiveness metrics."@en ;
            sh:select """
            SELECT $this
            WHERE {
                $this cacontology-prevention:participantCount ?count .
                FILTER (?count > 1000)
                FILTER NOT EXISTS {
                    ?effectiveness a cacontology-prevention:PreventionEffectiveness ;
                                   cacontology-prevention:preventionEffectiveness ?score .
                }
            }
        """ ] ;
    sh:targetClass cacontology-prevention:PreventionProgram .