I use the column Pos in M_S table to denote that the reified fact statement is a Subject or an Object in the statemnt about the fact. Then according to the value 'S' or 'O' in column Pos, one can get the ID of the reified fact statement from column Subject or Object in Statement table. below shows the content in M_S table of the example above: As I believe I mentioned before, it is possible for both the subject and the object to be reified statements. Also, maybe I'm missing something, but it seems to me that whether the subject or object or both of a statement refer to a reified statement is a feature of the statement and thus I'd expect this indication to be in the statement table, not in the model table. Brian McBride HPLabsReceived on Wednesday, 12 July 2000 17:15:19 UTC
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