Error in Profile.owl?

Hi people,
 
I found a problem in Profile.owl. As it's described at "OWL-S: Semantic Markup for Web Services" document, section 4.2.2, a Profile can have at most one service name and one text description. However, in Profile.owl 
the restriction over the class Profile is of type "cardinality" and not of type
"maxCardinality". Isn't it wrong this OWL description? 
 
  <owl:Class rdf:about="#Profile">
    <rdfs:comment>
       A profile can have only one name
    </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
          <owl:onProperty rdf:resource="#serviceName"/>
        <owl:cardinality rdf:datatype="&xsd;#nonNegativeInteger">1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  
  <owl:Class rdf:about="#Profile">
    <rdfs:comment>
      A profile can have only one text description
    </rdfs:comment>
    <rdfs:subClassOf>
      <owl:Restriction>
        <owl:onProperty rdf:resource="#textDescription"/>
        <owl:cardinality rdf:datatype="&xsd;#nonNegativeInteger">1</owl:cardinality>
      </owl:Restriction>
    </rdfs:subClassOf>
  </owl:Class>
  
Thank you,
Tatiana.

		
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