PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
        PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
        PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
        PREFIX schema: <http://schema.org/>

        SELECT DISTINCT ( MIN( ?lc ) AS ?l ) ( MIN( ?dc ) AS ?d ) ?s
        WHERE {
            ?pLabel rdfs:subPropertyOf* rdfs:label .
            {
                ?s ?pLabel ?lc .
                ?lc bif:CONTAINS '''"Barack Obama"''' .
                FILTER ( LCASE( STR( ?lc ) ) = "barack obama"@en || LCASE( STR( ?lc ) ) = "barack obama" )
            }
            {
                ?s rdf:type ?someType .
                FILTER NOT EXISTS {
                    ?s rdf:type <http://www.w3.org/2002/07/owl#Class> .
                }
                FILTER NOT EXISTS {
                    ?someSubClass rdfs:subClassOf ?s .
                }
                FILTER NOT EXISTS {
                    ?s rdfs:subClassOf ?someSuperClass .
                    }
            }
            OPTIONAL {
                ?s <schema:description> ?dc .
                FILTER ( LANGMATCHES( LANG( ?dc ), "en" ) )
            }
            OPTIONAL {
                ?s schema:description ?dc .
            }
        }
        GROUP BY ?s LIMIT 1000