Hi Richard, What is your SPARQL endpoint or preferably datasets and steps for recreating ?
Best Regards Hugh Williams Professional Services OpenLink Software, Inc. // http://www.openlinksw.com/ Weblog -- http://www.openlinksw.com/blogs/ LinkedIn -- http://www.linkedin.com/company/openlink-software/ Twitter -- http://twitter.com/OpenLink Google+ -- http://plus.google.com/100570109519069333827/ Facebook -- http://www.facebook.com/OpenLinkSoftware Universal Data Access, Integration, and Management Technology Providers > On 12 Oct 2015, at 14:35, Richard Nagelmaeker <i...@bluesky.co.nl> wrote: > > Hi, > > We are using RDFS inference on the SPARQL end-point, but get some unexpected > results. > Is this how the endpoint is supposed to work? > > In the dataset the following set of triples has been defined (turtle syntax): > relationZ rdfs:subPropertyOf relationA, relationB > > We do the following query: > (Query 1) > DEFINE input:inference <http://www.w3.org/2000/01/rdf-schema# > <http://www.w3.org/2000/01/rdf-schema#>> > SELECT ?a > WHERE > { > ?a a Product . > ?b a Mutation . > ?a ?p ?b . > } > > The resultset is Empty. > > If we change the query, so ?p becomes RelationA (like the example below) the > resultset has many responses. > > (Query 2) > DEFINE input:inference <http://www.w3.org/2000/01/rdf-schema# > <http://www.w3.org/2000/01/rdf-schema#>> > SELECT ?a > WHERE > { > ?a a Product . > ?b a Mutation . > ?a relationA ?b . > } > > If we turn of the inference line, by commenting it out, (Query 1) returns > many responses, whereas (Query 2) has an empty resultset. > > Expected result: > If (Query 1) has inference defined, it should return many responses (because > there is nothing to infere). Can anybody explain how this should work? > > Cheers, > > Richard > > -- > Richard Nagelmaeker > > BlueSky > Allowing data to empower humanity > > Tel: +31(0)6-3424 9884 > > KvK: 63442221 > > On Thu, 2015-10-08 at 16:05 +0000, > virtuoso-users-requ...@lists.sourceforge.net wrote: >> >> Send Virtuoso-users mailing list submissions to >> virtuoso-users@lists.sourceforge.net >> <mailto:virtuoso-users@lists.sourceforge.net> >> >> To subscribe or unsubscribe via the World Wide Web, visit >> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >> <https://lists.sourceforge.net/lists/listinfo/virtuoso-users> >> or, via email, send a message with subject or body 'help' to >> virtuoso-users-requ...@lists.sourceforge.net >> <mailto:virtuoso-users-requ...@lists.sourceforge.net> >> >> You can reach the person managing the list at >> virtuoso-users-ow...@lists.sourceforge.net >> <mailto:virtuoso-users-ow...@lists.sourceforge.net> >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Virtuoso-users digest..." >> Today's Topics: >> >> 1. quick exact label search through all languages (J?rn Hees) >> 2. Re: quick exact label search through all languages >> (Patrick van Kleef) >> 3. Re: quick exact label search through all languages (J?rn Hees) >> 4. RDF Mapper Options in Conductor (Haag, Jason) >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Virtuoso-users mailing list >> Virtuoso-users@lists.sourceforge.net >> <mailto:Virtuoso-users@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >> <https://lists.sourceforge.net/lists/listinfo/virtuoso-users> > ------------------------------------------------------------------------------ > _______________________________________________ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users
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