fuseki mem test - update script

U1.ru

DELETE {GRAPH ?G {<http://localhost/test/r4> ?p ?o}} WHERE {GRAPH ?G {<http://localhost/test/r4> ?p ?o}};
     INSERT DATA { GRAPH <http://localhost/test/r4> {
         <http://localhost/test/r4> <http://www.w3.org/2000/01/rdf-schema#label> "r 4 modified" .
         <http://localhost/test/r4> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://localhost/test/Resource> .
     } }