Loading non-emmo-related ontologies

[LorenaH84]

We wanted to load a schema.org schema (https://schema.org/version/latest/schemaorg-current-https.ttl) using get_ontology().load(), but it returns an empty object. If we change the "Class" prefix to "owl" and the "rdfs:label" to "skos:prefLabel" it does load all the classes. The only difference with loading an emmo ontology is that the label has to be retrieved from get_preferred_label() instead of "prefLabel". Would be convenient if other ontologies could also be loaded directly from the original turtle files.

An example on what we had to change:

schema:AMRadioChannel a rdfs:Class ;
rdfs:label "AMRadioChannel" ;

to:

schema:AMRadioChannel a owl:Class ;
skos:prefLabel "AMRadioChannel" ;

[francescalb]

Hi,

I see that the ontology loads with and that I can fetch the entities. My code:

from ontopy import get_ontology
onto = get_ontology("https://schema.org/version/latest/schemaorg-current-https.ttl").load(emmo_based=False)
print(onto.AMRadioChannel)

However I see the same thing that you do when trying to list all the classes etc.
Some digging into owlready2 shows that there itis hardcoded that it looks for owl:classes.

I have to think a little about how to circumvent that. Hopefully direct access as shown above is useful for you.