A DAML query

Hi All

Maybe someone can help me with
this basic problem on DAML

<rdfs:subClassOf>
 <daml:Restriction>
    <daml:onProperty
rdf:resource="http://www.daml.
org/services/daml
s/2001/10/Process#components"
/>
   <daml:toClass>
       <rdfs:subClassOf>
<daml:unionOf
rdf:parseType="daml:collection
">
<daml:Class rdf:about="#Query"
/>
<daml:Class
rdf:about="#MessageComp" />
</daml:unionOf>
     </rdfs:subClassOf>
   </daml:toClass>
 </daml:Restriction>
</rdfs:subClassOf>

Would this be correctly
defined DAML?

Charlie