That’s  clear David

Only here the structures ARE in OWL-RL (well, seem to be: intersection of 
classes, where classes are constructed with object value restrictions).
But the reasoning rules seem not to cover that relevant part of OWL-RL 
constructs.

(although looking at the kind of inferences wanted: they seem pretty strait 
forward ...)

michel




Dr. ir. H.M. (Michel) Böhms
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Van: [email protected] <[email protected]> Namens 
dprice
Verzonden: Monday, June 15, 2020 3:59 PM
Aan: [email protected]
Onderwerp: Re: [topbraid-users] inference question

It’s the inferences supported by each OWL profile that are important.

A typical RL engine is not going to complain about DL or OWL Full/RDF-Semantics 
constructs existing, it’s just not going to infer anything using them.

If a structure in an OWL model is not mentioned in the standard RL inferences, 
then it’s not supported by the TopBraid OWL RL rules.

Cheers,
David


On 15 Jun 2020, at 14:05, 'Bohms, H.M. (Michel)' via TopBraid Suite Users 
<[email protected]<mailto:[email protected]>> wrote:

Still wondering here…

It seems my case is under RL grammer ….

Or … can something be perfectly supported by the grammer (par 6.3) but not 
supported by amy reasoning rule (par 4.3) ?

Thx a lot!

(I am still hoping I just made a stupid mistake and that it could work 
directly…)

michel

Van: Bohms, H.M. (Michel)
Verzonden: Saturday, June 13, 2020 11:08 AM
Aan: '[email protected]<mailto:[email protected]>' 
<[email protected]<mailto:[email protected]>>
Onderwerp: RE: [topbraid-users] inference question

Hi David

In 6.3 (OWL-RL grammer) I also found:

equivClassExpression :=
    Class other than owl:Thing |
    equivObjectIntersectionOf |
    ObjectHasValue |
    DataHasValue

equivObjectIntersectionOf := 'ObjectIntersectionOf' '(' equivClassExpression 
equivClassExpression { equivClassExpression } ')'


so I hoped that my expression:

owl:equivalentClass [
      rdf:type owl:Class ;
      owl:intersectionOf (
          :DichteDeklagen
          [
            rdf:type owl:Restriction ;
            owl:hasValue :geslotenverharding ;
            owl:onProperty :fysiekvoorkomen ;
          ]
          [
            rdf:type owl:Restriction ;
            owl:hasValue :rijbaan-lokaleweg ;
            owl:onProperty :functie ;
          ]
        ) ;
    ] ;

Would fit in that...

Combining an:
equivObjectIntersectionOf and a
ObjectHasValue

? michel




Dr. ir. H.M. (Michel) Böhms
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Van: [email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>> 
Namens dprice
Verzonden: Thursday, June 11, 2020 6:31 PM
Aan: [email protected]<mailto:[email protected]>
Onderwerp: Re: [topbraid-users] inference question



On 11 Jun 2020, at 16:26, 'Bohms, H.M. (Michel)' via TopBraid Suite Users 
<[email protected]<mailto:[email protected]>> wrote:

Can I exp3ect from topspin based on:

<image002.jpg>


To derive an instance of Wegdeel with the values mentioned?

You can only be sure with a test, but I expect that is beyond OWL RL. I had a 
quick look at the RL profile and only see very simple equivalentClass axioms - 
see Table 7 in:

https://www.w3.org/TR/owl-profiles/#Reasoning_in_OWL_2_RL_and_RDF_Graphs_using_Rules.

Cheers,
David



Thx Michel



Dr. ir. H.M. (Michel) Böhms
Senior Data Scientist



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