"The problem received the title of `Buridan's sheep.' The biological
code was taken from a young merino sheep, by the Casparo-Karpov
method, at a moment when the sheep was between two feeding troughs
full of mixed fodder. This code, along with additional data about
sheep in general, was fed into CODD. The machine was required: a) to
predict which trough the merino would choose, and b) to give the
psychophysiological basis for this choice."
          -- The mystery of the hind leg, Arkady and Boris Strugatsky