about rdf, plese help me(wrong

I´m a student from Spain, who is doing his project with RDF, but I 
have a problem
which I can solve.

How I colud describe this, in RDF?

FASE  has an attribute whose name is NOMBRE, and whose value is 1.
      has a subclass whose name is LISTA_ESC.
		LISTA_ESC has a subclass whose name is ESC.
                      ESC has an attribute whose name is ID, whose  
                             value is S1

I have written (my RDF Schema is pgtesquema):

<rdf:RDF xml:lang="en"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:val="http://mural.uv.es/raulaber/pgtesquema#">


    <rdf:Description rdf:about 
= "http://mural.uv.es/raulaber/pgtesquema#FASE" val:NOMBRE="1"> 

		    <rdf:Description rdf:about 
= "http://mural.uv.es/raulaber/pgtesquema#LISTA_ESC">
   	        			  		            
	                        <rdf:Description rdf:about 
= "http://mural.uv.es/raulaber/pgtesquema#ESC" val:ID="S1">
				</rdf:Description>

		    </rdf:Description>	   

    </rdf:Description>

</rdf:RDF>
            

Thanks a lot.