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Re: From syntactic to interpreted triple

From: James Anderson <anderson.james.1955@gmail.com>
Date: Thu, 21 Jan 2021 17:18:11 +0100
Message-Id: <B3A0E9C6-8F69-40E5-ADD4-7C430A511D22@gmail.com>
To: public-rdf-star@w3.org

> On 2021-01-21, at 15:35:45, Olaf Hartig <olaf.hartig@liu.se> wrote:
> Hi Thomas,
> You are raising an interesting point that I was also thinking about recently, 
> and I believe I have a solution.
> ...
> Given this understanding, you may indicate the cases in which you want to use 
> referential transparency on top of a referential opacity semantics by using 
> specific properties that you introduce for this purpose. For instance, you may 
> introduce a property denoted by the URI ex:statedBy and define that 
> referential transparency can be used for nested triples that have this 
> property in their predicate position. This way, related to your example, if 
> you have a nested triple 
> <<:cars :are :bad>> ex:statedBy :Alice 
> you can derive the following triple.
> <<:automobiles :are :bad>> ex:statedBy :Alice 
> So, while the semantics of RDF* adopts referential opacity, you can build on 
> it and define cases in which you want to have referential transparency.

please give, as an example, a sparql query which would accomplish this based on the semantics in the current https://pr-preview.s3.amazonaws.com/w3c/rdf-star/pull/81.html 
Received on Thursday, 21 January 2021 16:18:26 UTC

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