Restriction on subClassOf limitation? or documentation not clear?

[Charbel Kaed]

Hello, 

I am trying to use rdf lib to create the following: (a protege screenshot in the attachment)

  <Class rdf:about="http://www.abc#Building">

        <rdfs:subClassOf rdf:resource="http://www.abc#PhysicalLocation"/>

        <rdfs:subClassOf>

            <Restriction>

                <onProperty rdf:resource="http://www.abc#hasFloor"/>

                <allValuesFrom rdf:resource="http://abc#Floor"/>

            </Restriction>

        </rdfs:subClassOf>

        <rdfs:comment>This is a type for BUILDING facilities object</rdfs:comment>

        <rdfs:label>Building</rdfs:label>

    </Class>

    

But the only way I am able to create something are restrictions on properties and not classes such as:

<owl:ObjectProperty rdf:about="http://www.abc#hasFloor">
  <rdfs:domain rdf:resource="http://www.abc#Building"/>

  <rdfs:subPropertyOf rdf:resource="http://www.abc#hasPhysicalLocation"/>

  <rdfs:range>
    <owl:Restriction rdf:nodeID="N73e2705103db4e57b37b969e7a1d4780">
      <owl:onProperty rdf:resource="http://www.abc#hasFloor"/>

      <owl:allValuesFrom rdf:resource="http://www.abc#Floor"/>

    </owl:Restriction>
  </rdfs:range>
</owl:ObjectProperty>

Using the following code:

restriction_floor = Restriction(
    constants.NS.hasFloor,
    allValuesFrom=constants.NS.Floor,
    graph=graph)
Property(
    has_floor,
    graph=graph,
    domain=constants.NS.Building,
    range=restriction_floor)

I would like to be able to create the restriction at the subClassOf level, how is it possible to do this?

Thank you

Best

Charbel

[Nicholas Car]

Hi Charbel,

Why don’t you just build up the graph by adding the triples you want like this:

g = Graph()

g.add((S1, P1, O1))

g.add((S2, P2, O2))

...

That gives you fine-grained control as you can add anything that RDF supports directly.

Nick 

— 

Dr Nicholas Car

Data Systems Architect

SURROUND Australia

0477 560 177

nichol...@surroundaustralia.com

On 21 Nov 2019, at 10:44 am, 'Charbel Kaed' via rdflib-dev <rdfli...@googlegroups.com> wrote:



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