I've noticed there's also an open ticket for such issue:
http://sourceforge.net/tracker/index.php?func=detail&aid=3418682&group_id=190976&atid=935521
cheers,
roberto
Il 31/05/2012 11:35, Roberto Mirizzi ha scritto:
> Hi all,
> try this simple query against the DBpedia SPARQL endpoint:
>
> ##############
> SELECT * WHERE {
> <http://dbpedia.org/resource/ChannelFlip>
> <http://dbpedia.org/ontology/formationYear> ?y
> }
> ##############
>
> You will get:
> "2007-01-01T00:00:00-04:00"^^<http://www.w3.org/2001/XMLSchema#gYear>
>
> However, as you can check here
> (http://www.w3.org/TR/xmlschema-2/#gYear), this is not a valid value
> for xsd:gYear data-type. It should be just 2007.
> Similarly, if you check this RDF data
> (http://dbpedia.org/data/ChannelFlip.rdf) you will find the same
> issue. This causes RDF reasoners to raise an error.
> Curiously, if you go to the HTML version of the same resource
> (http://dbpedia.org/page/ChannelFlip), you will see the correct
> data-type between parentheses: 2007-01-01 00:00:00 (xsd:date).
>
> Is it possible to correct this error before the new DBpedia release?
>
> If you want, I can post the issue again on the DBpedia-developers
> mailing list.
>
> Cheers,
> roberto
>
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