Name: Anonymous 2009-02-24 9:06
Welcome to SWI-Prolog (Version 5.6.16)Copyright (c) 1990-2006 University of Amsterdam.
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.
For help, use ?- help(Topic). or ?- apropos(Word).
?- help('/prog/').
No help available for /prog/
Yes
?-