> >>  then I deduce that the German owns the fish.

> >> John Murray

> Andrew>  And now John it's time to tell all us mere mortals how you
> Andrew>  deduced that ...

> Take a sheet of paper, split it in five columns (each one
> corresponding to a house), and then for each house write terms that
> you know to be true, and terms that are known to be false. Use them
> along with 'rules' to deduce missing facts.
> Note that it doesn't have to be solved *this* way: it's just a
> convenient domain representation, since many of the rules operate with
> relative positions of items.
> And John is right in that the ruleset is meaningful only for
> 'traditional' cultures who mostly enumerate objects from left to
> right. It is very unlikely that Einstein was such a brain chauvinist.

> --
>   Eugene