David Gemelli wrote:
>> Sorry, I was late to my Prolog lesson (not a funny one !). I wrote this
>> very quickly.

  I have the file. Thanks for posting it, David.

- Alan
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"Art reaches its greatest peak when devoid of self-consciousness.
 Freedom discovers man the moment he loses concern over what
 impression he is making or about to make." - Bruce Lee (1947 - 1973)
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