borders/2 is not symmetric

[stefan-kral]

Hi.

borders/2 should be symmetric, but it is not.

?- borders(X,Y), \+ borders(Y,X).
X = atlantic,
Y = french_guiana ;
X = atlantic,
Y = surinam ;
false.

Best regards,
Stefan.

[JanWielemaker]

Sorry, but it is just an old demo. If you like to make the data consistent and/or complete, be my guest. Otherwise it is an illustration of semantic parsing for NLP. The code is rather hard to assess without the original documents though. These are still available (forgot where though).