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[protege-owl] Creating a class (DL)

Timothy Redmond tredmond at
Mon Aug 30 08:59:09 PDT 2010

I am happy to be contradicted but I think that this issomething that you 
will need SWRL for.


On 08/28/2010 03:20 AM, An C. Tran wrote:
>  Dear all,
> I am reading DL and would like to create class by using DL idea. 
> However, I do not know how to describe it in DL and Protege either. 
> Would you please to help me with this.
> Support that a have the following Classes and Properties (Data/Object):
> 1. Class:
>         Activity
>         Timepoint
> 2. Object properties:
>         hasStartTime:  Activity hasStartTime Timepoint
>         hasNormalStartTime: Activity hasNormalStartTime TimePoint
>         after: TimePoint after TimePoint
>         before: TimePoint before TimePoint
> Now, I would like to create a class named AbnormalActivity as follow:
>     "An AbnormalActivity is an Activity that hasStartTime after its 
> normal start time"
> using the above classes and properties.
> Actually, I have ever defined it by using rule (SWRL). However, I want 
> to do it by DL now.
> Would you like to help me define it in DL and Protege?
> Thank you.
> An.
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