- From: Thomas Baker <tom@tombaker.org>
- Date: Wed, 30 May 2012 09:28:56 -0400
- To: Pat Hayes <phayes@ihmc.us>
- Cc: Richard Cyganiak <richard@cyganiak.de>, nathan@webr3.org, RDF WG <public-rdf-wg@w3.org>, David Wood <david@3roundstones.com>
On Tue, May 29, 2012 at 07:08:50PM -0500, Pat Hayes wrote:
> > On 29 May 2012, at 19:17, Pat Hayes wrote:
> >>>> Given a graph:
> >>>>
> >>>> {
> >>>> [] a :Person ;
> >>>> :mailbox <mailto:foo@bar.com> .
> >>>>
> >>>> [] a :Person ;
> >>>> :mailbox <mailto:bar@foo.com> .
> >>>> }
> >>>>
> >>>> then how many nodes does this contain? 4?
> >>>
> >>> No. Five. Two blank nodes, the IRI :Person, and two mailto IRIs.
> >>
> >> I think it is 4. The :Person IRI only occurs as a property.
> >
> > Look again, Pat.
>
> Whoops. Sorry. (I am STILL not used to the 'a' convention. To hell with N3, I say.)
Hang on, then. Are there not then 6 nodes in the graph? Two blank
nodes, the IRI :Person, two mailto IRIs, and the IRI rdf:type, as per:
The token _a_ in the predicate position of a Turtle triple represents
the IRI http://www.w3.org/1999/02/22-rdf-syntax-ns#type . [1]
Tom
[1] http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-turtle/index.html#IRIs
--
Tom Baker <tom@tombaker.org>
Received on Wednesday, 30 May 2012 13:29:37 UTC