PREFIX dbo: <http://dbpedia.org/ontology/>
                    
                    SELECT ?s WHERE {
                        ?s a dbo:Museum
                    }
                
            

                
                    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
                    
                    SELECT ?s WHERE {
                        ?s rdf:type <http://dbpedia.org/ontology/Museum>
                    }
                
            

                
                    PREFIX dbo: <http://dbpedia.org/ontology/>
                    
                    SELECT DISTINCT ?s WHERE {
                        ?s a dbo:Museum.
                        ?s dbo:country <http://fr.dbpedia.org/resource/France>
                    }
                
            

                
                    PREFIX dbo: <http://dbpedia.org/ontology/>
                    
                    SELECT ?city ( COUNT ( DISTINCT ?s ) as ?nb ) WHERE {
                        ?s a dbo:Museum.
                         ?s dbo:country <http://fr.dbpedia.org/resource/France>.
                         ?s dbo:city ?city.

                    } GROUP BY ?city ORDER BY DESC(?nb)
                
            

                
                    PREFIX dbo:<http://dbpedia.org/ontology/>
                    
                    SELECT ?m ( COUNT( DISTINCT ?o ) as ?nb_artwork ) ( COUNT( DISTINCT ?col ) as ?nb_collection ) WHERE {
                        ?o a dbo:Artwork.
                        ?o dbo:museum ?m.
                        ?m dbo:city <http://fr.dbpedia.org/resource/Paris>.
                        OPTIONAL {?m dbo:collection ?col}
                    }  GROUP BY ?m ORDER BY DESC(?nb_artwork)
                
            

                
                    PREFIX dbo: <http://dbpedia.org/ontology/>
                    
                    PREFIX dbpedia-fr: 
                    SELECT  DISTINCT ?o  ?y WHERE {
                        ?o a dbo:Artwork.
                        ?o dbo:creationYear ?y.
                        FILTER( YEAR(?y) < 1900 && YEAR(?y) > 1850). 
                        ?o dbo:museum dbpedia-fr:Musée_du_Louvre.
                    } 
                
            

                
                    PREFIX dbo: <http://dbpedia.org/ontology/>
                    PREFIX dbpedia-fr: <http://fr.dbpedia.org/resource/>
                    
                    SELECT ?a ( COUNT( ?o ) as ?nb ) WHERE {
                        ?o a dbo:Artwork.
                        ?o dbo:author ?a.
                        ?o dbo:museum dbpedia-fr:Musée_du_Louvre.
                    }   GROUP BY ?a ORDER BY DESC(?nb) LIMIT 10
                
            

                
                DESCRIBE <http://fr.dbpedia.org/resource/Eugène_Delacroix>
                
            

                
                PREFIX dbo: <http://dbpedia.org/ontology/>
                
                ASK {
                    ?o dbo:museum ?m.
                    ?m a dbo:Museum.
                    ?m dbo:city <http://fr.dbpedia.org/resource/Lyon>.
                    ?o a dbo:Artwork.
                    ?o dbo:author <http://fr.dbpedia.org/resource/Raphaël_(peintre)>
                }