To the student who asked the question about "transitive relation" in semantic web:
My sincere apologies for my poor choice of words in my first response. As I clarified, all I meant to tell you was to hold on a minute as the answer to your question is going to be the center of the discussion that was to follow immediately. No disrespect was meant either for the question (which, as I repeatedly came back to as an important one) or the questioner.
Rao "Thank God I am not Gordon Brown running for re-election" Kambhampati