- From: Dave Reynolds <dave.e.reynolds@gmail.com>
- Date: Fri, 17 Dec 2010 09:30:04 +0000
- To: Melvin Carvalho <melvincarvalho@gmail.com>
- Cc: Semantic Web <semantic-web@w3.org>
On Fri, 2010-12-17 at 09:55 +0100, Melvin Carvalho wrote: > Apologies if this has come up before. I was wondering the best way to > model the following: > > Alice owns a dog. We choose to model it as follows. > > :Alice :owns a dbpedia:dog That's an RDF statement, maybe you meant: :Alice :owns [a dbpedia:dog] . I.e. there is something, which is a dog and which Alice owns. > > All is going well. > > Then Alice gets given a second dog. > > If we write: > > :Alice :owns a dbpedia:dog > :Alice :owns a dbpedia:dog :Alice :owns [a dbpedia:dog] . :Alice :owns [a dbpedia:dog] . is a reasonable graph, it is not lean since both those bNodes might correspond to the same dog but it is a graph with 4 statements not a graph with two statements. To convey that those are definitely different dogs then you can add an owl:differentFrom link: :Alice owns _:1 . _:1 a dbpedia:dog . :Alice owns _:2 . _:2 a dbpedia:dog . _:2 owl:differentFrom _:1 . Dave
Received on Friday, 17 December 2010 09:30:40 UTC