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Logtalk - Object oriented extension to Prolog
Release 2.27.1
Copyright (c) 1998-2006 Paulo Moura. All Rights Reserved.
% start by loading the necessary library and support example files (if not
% already loaded):
| ?- logtalk_load([library(events_loader), library(types_loader), library(hierarchies_loader)]).
...
| ?- logtalk_load(roots(loader)).
% now you are ready for loading the example:
| ?- logtalk_load(relations(loader)).
% the objects in this example are used by several of the other examples.