RDF/XML - test001

<rdf:RDF>
   <!-- The é below is a single character #xE9 in NFC -->
   <rdf:Description rdf:about="http://example.org/#André">
      <eg:owes>2000</eg:owes>
   </rdf:Description>
</rdf:RDF> 

N-triple - test001

<http://example.org/#Andr\u00E9> <owes> "2000" .

*** #xE9 is the unicode for é?

RDF/XML - test002

<rdf:RDF>
   <!-- The %C3%A9 below corresponds to é under the
        %escaping algorithm for URIs.     -->
   <rdf:Description rdf:about="http://example.org/#Andr%C3%A9">
      <eg:owes>2000</eg:owes>
   </rdf:Description>
</rdf:RDF> 

N-triple - test002

<http://example.org/#Andr%C3%A9> <owes> "2000" .

*** %C3%A9 is the % escaped UTF-8 encoded version of é

Non-entailment test003

Neither test001 entails test002, nor test002 entails test001.

error001

<rdf:RDF>
   <!-- The é below is two characters an e followed by 
          #x301. It should be displayed identically to  é. -->
   <rdf:Description rdf:about="http://example.org/#André">
      <eg:owes>2000</eg:owes>
   </rdf:Description>
</rdf:RDF>