Hello!

I'll start with the fact that I am not closely familiar with OWL specification, I just try to handle it with available tools in Rust.

I am parsing schemaorg/data/releases/27.0/schemaorg.owl using hornet_owl crate but failing because of object propery supersededBy. For example for the case:

<owl:ObjectProperty rdf:about="https://schema.org/actors">
	<rdfs:comment xml:lang="en">An actor, e.g. in TV, radio, movie, video games etc. Actors can be associated with individual items or with a series, episode, clip.</rdfs:comment>
	<rdfs:label xml:lang="en">actors</rdfs:label>
	<schema:supersededBy rdf:resource="https://schema.org/actor"/>
	<rdfs:isDefinedBy rdf:resource="https://schema.org/actors"/>
	<rdfs:domain>
        ...

The core problem is that any triplet of kind (subject: ObjectProperty, predicate: ObjectProperty, object: ObjectProperty) can't be correctly interpreted by parser in term of building graph. I understand the meaning of the triplet in this case, but it looks like it does not correspond to the (OWL recommended syntax)[https://www.w3.org/TR/owl2-overview/#Syntaxes].
The close alternative from specification is to use owl:DeprecatedProperty or maybe owl:AnnotationProperty (didn't catch full mechanics entirely).

I want to understand, is it really slightly violates the recommended OWL syntax, or parser doesn't handle this case correctly.