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
--
Roberto Mirizzi
PhD
http://sisinflab.poliba.it/mirizzi
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