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[protege-discussion] duplicated relations

GEORGE LITSIOS litsiosgeorgios at hotmail.com
Thu Jan 22 14:35:45 PST 2009


Hello all,
 
I have the folloing issue: 
 
i have an ontology with Class A,B,C
 
A has the folowng instances: 1,2,3
B has the folowng instances:4,5,6
C has the folowng instances:7,8,9
 
And B is Subclass of A.
 
I have a program in whitch i use jena.api and there are the folowng two circumstances:
 
i have some strings that are elements of the ontology (Classes or Individuals).
 
A)When is a Class i put a restriction on a property and make it subclass of the class with value a specific individual x.
 Lets say Class A
 
So the individuals 1,2,3,4,5,6 will have a relation with the individual x.
 
B)When is individual i make the same relation with the individual and the individual x.
Lets say the individual is the 4.
 
So i add a relation between 4 and x.
 
The problem i have untill now is that when i open the ontology with an ontology editor (Protege) there are individuals which have the relation with the individual x more than one time.
 
At the above example i'm seeing at the editor that individual 4 has a relation with individual x and individual x.
 
Do you have a proposition to solve this?
 
Thanks in advanced
George
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