Converting Turtle to RDF/XML

I wanted to experiment with converting my little test acronym file to Turtle or RDF and looked around and found a tool, RDF Validator and Converter on the rdf:about Web site run by Joshua Tauberer, that can in fact convert Turtle to raw XML/RDF. I tried it out with that simple Turtle example from my last blog post:

ex:animals rdf:type skos:Concept;
  skos:prefLabel "animals".

But the validator complained that the "ex:" prefix was undefined. I went back to the SKOS Primer, and found that you define the prefixes with "@prefix", and you need that for the "ex:", "rdf:", and "skos:" prefixes, like so:

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix skos: <http://www.w3.org/2008/05/skos#>.
@prefix ex:<http://www.example.com/>.
ex:animals rdf:type skos:Concept;
  skos:prefLabel "animals".

The validator accepted that and informs me that the equivalent XML/RDF is:

<?xml version="1.0"?>
<rdf:RDF
    xmlns:skos="http://www.w3.org/2008/05/skos#"
    xmlns:ex="http://www.example.com/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
 <skos:Concept rdf:about="http://www.example.com/animals">
  <skos:prefLabel>animals</skos:prefLabel>
 </skos:Concept>
</rdf:RDF>

So, the core XML/RDF for that one SKOS concept is:

 <skos:Concept rdf:about="http://www.example.com/animals">
  <skos:prefLabel>animals</skos:prefLabel>
 </skos:Concept>

The validator also tells me that there are two underlying triples here, one for the "Concept" and one for the "prefLabel":

<http://www.example.com/animals>
   <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
   <http://www.w3.org/2008/05/skos#Concept> .
<http://www.example.com/animals>

   <http://www.w3.org/2008/05/skos#prefLabel>
   "animals" .

So, it actually is not so difficult, once somebody gives you a bunch of the clues.

Now on to converting my raw XML acronym test into Turtle.

-- Jack Krupansky