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The 'provenance' discussion...

From: Ivan Herman <ivan@w3.org>
Date: Thu, 25 Aug 2011 17:33:15 +0200
To: W3C RDFWA WG <public-rdfa-wg@w3.org>
Message-Id: <50416EA2-42D5-422D-90F0-43AD11931D81@w3.org>
I am afraid we were discussing ghosts...

At least in RDFLib it is absolutely no problem to generate a triple that, when serialized in turtle, is <>. On the other hand, for any RDFa document we have the base, which is well defined in the core spec and which is always a URI. The only problem is that in our _internal_ communications we always used <> incorrectly as referring to what is, essentially, <base>.

Put in another way, it should not be a problem to generate a triple into the default^H^H^H^H^H^H^Houtput graph of the form

<> foaf:page <base> .

(or any other predicate that we may want to use there).


P.S. Technically, in the case of RDFLib, it is perfectly possible to create a URIRef of the form:

s = URIRef('')

ie, with an empty URI, which can be considered as an identification of the current graph...

Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Thursday, 25 August 2011 15:30:36 UTC

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