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        1.  

          How to specify multiple possible expected property types

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          4 posts, latest post: dude, Feb 27, 2009
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          1. amanshakya
            Jan 20, 2009
            amanshakya says:

            I was trying to create a type schema with an "organizer" property. I want to specify that the "organizer" may be of existing type "person" or "organization". I could not figure out how I can do that. Any idea?

            1. crism Metaweb Staff
              Jan 20, 2009
              crism says:

              You can’t, for a couple of reasons. First, if you add a previously-unknown organizer, what type should Freebase make it? Second, if you want to make a reverse property for organizer (organizations organized, perhaps), what type should it be on?

              The thing to do in this case is to make a new type, probably called Organizer. That way the Person or Organization that did the organizing can have a reverse property easily.

            2. amanshakya
              Jan 21, 2009
              amanshakya says:

              I see.

              It is a common case to have union of types as the range for a property. I think that creating new types in this way may result in many types.Anyway, thank you very much.

            3. dude
              Feb 27, 2009
              dude says:

              teasdf

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