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Re: Example Errors (sections 8, 9, 10)

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Thu, 08 Sep 2005 15:51:03 +0100
Message-ID: <43204FD7.8060309@hp.com>
To: RRLevering@yahoo.com
CC: public-rdf-dawg-comments@w3.org



Ryan Levering wrote:
> 
>  >>
>  >> In section 9.3, the default graph should actually be a named graph with
>  >> the uri http://example.org/dft.ttl.
>  >>
>  >> In section 9.1, the default graph should actually be a named graph with
>  >> the uri http://example.org/foaf/aliceFoaf.
> 
>  > Could you say more here?  Reading a graph from a location does not
>  > automatically give it a name.  That woudl eb FROM NAMED.  This is 
> significant
>  > for FROM because there can be several FROM clauses and the default 
> graph will
>  > be formed using all these (e.g. the RDF merge)
> 
>  > FROM <graph1>
>  > FROM <graph2>
> 
>  > In the example in section 9.3, the default graph is formed given the 
> single
>  > IRI <http://example.org/dft.ttl> but that isn't also a naming operation.
> 
>  > For 9.1 and 9.3, I could add a note to say that the default graph is 
> read from
>  > these locations but not named (that would be done if it were FROM 
> NAMED).
> 
> My apologies on my lack of clarity.  The query is fine in both cases, 
> but in the data listing, the header on the default graphs is "# Default 
> graph", which isn't nearly as clear as, for instance 9.3: "# Named 
> graph: http://example.org/dft.ttl" which is what the query actually uses 
> for it's default dataset.  The point of FROM is that you're using a 
> named graph to specify a default/background graph, so it would be 
> clearer to actually have a name on that graph listing.
> 
> Ryan Levering
> 

OK - I see now.

Would an editorial change like:

----
# Default graph (stored at http://example.org/foaf/aliceFoaf)
@prefix  foaf:  <http://xmlns.com/foaf/0.1/> .

_:a  foaf:name     "Alice" .
_:a  foaf:mbox     <mailto:alice@work.example> .
----
adding something to the comment in the data and retaining the point it is the 
default graph and not using the term "naming" make it clear?

	Andy
Received on Thursday, 8 September 2005 14:55:43 GMT

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