[protege-discussion] Problem in inferrencing

[Thomas Russ]

On Sep 15, 2010, at 9:54 AM, Soha Said wrote:

> Hello,
> I use protégé 4.1 beta. I build an ontology "Student" is subclass of  
> "Person".
> If I create an instance from each two classes, then properties of  
> person instance inherited to student instance:
>
> If "Person_Instance_1":
> Type: Person.
> Name: Chris.
>
> And, "Student_Instance_1":
> Type: Student.
> Adjective: graduate.
>
> I want after inferencing, I can deduce that:
>
> "Student_Instance_1":
> Type: Student.
> Adjective: graduate.
> Name: Chris.
>
>
> How can I reach this result?

The only way to reach this result is to assert somewhere that

    Person_Instance_1 sameAs Student_Instance_1

You can't get the result you want with inference any other way.  After  
all, there can be man instances of Person named "John", "Bill", etc.  
who are differentFrom Student_Instance_1.  So you have to tell the  
system which instances refer to the same individual.