Validator Problem

Hello. This is my rdf file and i the rdf validar throws me this error. Can
you tell what is happening and why the validator doesn't show the foaf information
for the resource.
thanks for your time,
federico

Error: {E201} Syntax error when processing " ". Encountered " " Was expecting
one of: XML comment processing instruction end element tag attribute rdf:bagID
property attributes attribute rdf:type [Line = 29, Column = 64]

<?xml version="1.0"?>
<rdf:RDF 
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xmlns:dcelem="http://purl.org/dc/elements/1.1/"
   xmlns:dcterms="http://purl.org/dc/terms/"
   xmlns:foaf="http://xmlns.com/foaf/0.1/"
   xmlns:dctype="http://purl.org/dc/dcmitype/">
   <rdf:Description     rdf:about="http://ua.edu.ar/Books/ProgrammingBooks/CProgramming">
      <dcelem:title>C Language Programming</dcelem:title>
      <dcelem:subject>Programming Book</dcelem:subject>
      <dcelem:contributor>Dennis Ritchie</dcelem:contributor>
      <dcelem:language>en</dcelem:language>
      <dcterms:abstract>This is an excelent book</dcterms:abstract>
      <dcelem:Type>Text</dcelem:Type>
      <dcelem:format>application/pdf</dcelem:format>
      <dcelem:date>2001-01-20</dcelem:date>
      <dcterms:created>2000-10-01</dcterms:created>
      <dcterms:available>2000-10-01</dcterms:available>
      <dcterms:issued>2000-10-01</dcterms:issued>
      <dcelem:description>How to program in C     languaje.</dcelem:description>

      <dcterms:modified>2000-10-01</dcterms:modified>
      <dcelem:Identifier>urn:issn:1082-9873</dcelem:Identifier>
      <dcterms:isPartOf  rdf:resource="http://ua.edu.ar/Books/ProgrammingBooks/"></dcterms:isPartOf>
      <dcelem:accessRights>Students</dcelem:accessRights>       
      <dcterms:hasVersion>1.0</dcterms:hasVersion>
      <dcterms:isRequiredBy     rdf:resource="http://ua.edu.ar/Subject/Programming/"/>
      <dcterms:isReferencesBy rdf:resource="http://uca.edu.ar/Articles/Programming/NewLanguages"/>
      <dcelem:creator rdf:resource="http://www.kernighan.com/">
              <foaf:Person>
                  <foaf:name>Brian W. Kernighan</foaf:name>
                  <foaf:nick>Brian</foaf:nick>
                  <foaf:mbox rdf:resource="mailto:kernighan@mit.com"/>
                  <foaf:knows>
                      <foaf:Person>
                          <foaf:name>Zinedine Zidane</foaf:name>
                          <foaf:mbox rdf:resource="mailto:zidane@madrid.es"/>
                      </foaf:Person>
                   </foaf:knows>
               <foaf:depiction rdf:resource="http://ua.edu.ar/Photos/Zidane.jpg"/>

              </foaf:Person>
      </dcelem:creator>
     </rdf:Description> 
</rdf:RDF>
  
  

________________________________________
FiberTel, el nombre de la banda ancha http://www.fibertel.com.ar

Received on Wednesday, 5 May 2004 22:51:55 UTC