- From: Sandro Hawke <sandro@w3.org>
- Date: Mon, 09 May 2005 11:22:26 -0400
- To: Graham Klyne <GK@ninebynine.org>
- Cc: "Charles McCathieNevile" <charles@sidar.org>, "conor dowling" <conor@the325project.org>, semantic-web@w3.org
> At 16:50 08/05/05 +0200, Charles McCathieNevile wrote: > >>2) rdf:about value and value of "?subject" > >> > >># can I get the "rdf:about" from every resource > >>PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> > >>SELECT ?about > >>WHERE { ?subject rdf:about ?about } > > > >I wondered how to do this. [...] > > That should *not* be valid, as rdf:about is part of the RDF/XML syntax, NOT > an RDF property URI. > > cf. > http://www.w3.org/TR/rdf-syntax-grammar/#section-Namespace > http://www.w3.org/TR/rdf-syntax-grammar/#coreSyntaxTerms > http://www.w3.org/TR/rdf-syntax-grammar/ What you want there, I think, is log:uri, with a query engine which implements it. Intuitively, rdf:about and log:uri are the same thing, but as Graham points out, rdf:about is actually specified to be handled completely differently, so (sadly) it wont work in this kind of situation. -- sandro
Received on Monday, 9 May 2005 15:22:39 UTC