Re: [protege-user] hello

>
> about the schema/Course how we should declare it i am bit confused in your
> file you made it like
> @prefix : <
> http://www.semanticweb.org/mdebe/ontologies/2025/0/us_geography#> .
> @prefix scem: <http://www.schema.org/> .
> scem:Course rdf:type owl:Class .


shouldnt we just say
> :Course rdf:type owl:Class, scem:Course


I'm not sure why you think it should be:

:Course rdf:type owl:Class, scem:Course


"scem:Course rdf:type owl:Class" is a valid triple but ":Course rdf:type
owl:Class, scem:Course" is not unless you are trying to say that Course has
type Course. You can have multiple values for the object of a triple
separated by a comma. E.g., from that US geography simple ontology you
could say: :USA :contains :California, :Arizona. But I don't think it makes
sense to make an instance be an instance of itself. Also, I don't
understand why you use :Course the first time and scem:Course the second
time. FYI, when people use just the colon there is still a prefix, it is
just the empty string. That's what Protege does for the namespace of your
ontology creates a mapping to the empty string prefix so you can just do
:Course (although Protege is smart enough that you don't even need the
":"). But since I was inserting the IRI for the Course concept from
schema.org into an existing ontology (which is what I thought you were
trying to do) I couldn't use the empty string prefix because that would map
to my ontology iri and be:
http://www.semanticweb.org/mdebe/ontologies/2025/0/us_geography#Course
rather than http://www.schema.org/Course which is what I thought you
wanted. Hope this is making sense, it's late and has been a long day.
Anyway, let me know what you think and we'll figure it out.

Michael




On Thu, Jan 23, 2025 at 8:07 PM stathoula terzidou <[email protected]>
wrote:

> about the schema/Course how we should declare it i am bit confused in your
> file you made it like
> @prefix : <
> http://www.semanticweb.org/mdebe/ontologies/2025/0/us_geography#> .
> @prefix scem: <http://www.schema.org/> .
> scem:Course rdf:type owl:Class .
>
> shouldnt we just say
> :Course rdf:type owl:Class, scem:Course
>
> Στις Παρ 24 Ιαν 2025 στις 5:53 π.μ., ο/η Michael DeBellis <
> [email protected]> έγραψε:
>
>> Thanks, that makes sense.  I think your best bet (unless someone else on
>> the list has ideas) is to create an issue on their GitHub repo:
>> https://github.com/fekaputra/shacl-plugin  I'm also copying Andre who I
>> think is one of the main developers. Andre, please see thread below:
>>
>> On Thu, Jan 23, 2025 at 7:47 PM stathoula terzidou <[email protected]>
>> wrote:
>>
>>> just checked its from the shacl4protege plugin window>views>ontology
>>> views>turtle rendering
>>> when i open it it removes all the prefixes i created and also the empty
>>> one ' : '
>>>
>>> Στις Παρ 24 Ιαν 2025 στις 4:05 π.μ., ο/η Michael DeBellis <
>>> [email protected]> έγραψε:
>>>
>>>> Just realized I didn't answer your second question:
>>>>
>>>> also in the turtle rendering tab why it shows me the full IRIs from all
>>>>> entities and not with the prefix?
>>>>
>>>>
>>>> Not sure what you mean by the "turtle rendering tab". I don't see that
>>>> tab in the tabs under Window>Tabs   Do you mean just the ttl file that gets
>>>> generated when you save the ontology in Turtle format? I just checked and
>>>> it does indeed use the full IRIs. Not sure why. My guess is it may be a bit
>>>> more efficient and since most people seldom edit those ttl files directly
>>>> having the full IRIs doesn't really matter. The only time (unless you are
>>>> one of those developers who still thinks "real programmers use vi") you
>>>> should directly edit those files is when you have some unexplained behavior
>>>> because some weird character or something krept into your file.
>>>>
>>>> If you have a Turtle Rendering Tab in Protege my guess is you are using
>>>> some plugin that I'm not aware of that creates such a tab. If that's the
>>>> case please let us know.
>>>>
>>>> Michael
>>>>
>>>> On Thu, Jan 23, 2025 at 6:14 AM stathoula terzidou <
>>>> [email protected]> wrote:
>>>>
>>>>> i try to add a prefix from the 'Ontology Prefixes' tab and clicking
>>>>> the + button. At first seems to create it but when switching tabs it
>>>>> disappears
>>>>> i have a class Course and want to use the schema.org/Course so i was
>>>>> thinking to create a prefix sch: <http://www.schema.org/> and make
>>>>> the class Course a owl:Class, sch:Course .
>>>>> is this correct?
>>>>> also in the turtle rendering tab why it shows me the full IRIs from
>>>>> all entities and not with the prefix?
>>>>> _______________________________________________
>>>>> protege-user mailing list
>>>>> [email protected]
>>>>> https://mailman.stanford.edu/mailman/listinfo/protege-user
>>>>>
>>>> _______________________________________________
>>>> protege-user mailing list
>>>> [email protected]
>>>> https://mailman.stanford.edu/mailman/listinfo/protege-user
>>>>
>>> _______________________________________________
>>> protege-user mailing list
>>> [email protected]
>>> https://mailman.stanford.edu/mailman/listinfo/protege-user
>>>
>> _______________________________________________
>> protege-user mailing list
>> [email protected]
>> https://mailman.stanford.edu/mailman/listinfo/protege-user
>>
> _______________________________________________
> protege-user mailing list
> [email protected]
> https://mailman.stanford.edu/mailman/listinfo/protege-user
>

_______________________________________________
protege-user mailing list
[email protected]
https://mailman.stanford.edu/mailman/listinfo/protege-user