C:\jaagup\20\01\prolog>"c:\Program Files\Notepad++\notepad++.exe" koerad1.pl

C:\jaagup\20\01\prolog>"c:\Program Files\swipl\bin\swipl.exe" koerad1.pl
Welcome to SWI-Prolog (threaded, 64 bits, version 8.0.3)
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software.
Please run ?- license. for legal details.

For online help and background, visit http://www.swi-prolog.org
For built-in help, use ?- help(Topic). or ?- apropos(Word).

1 ?- koer(X).
X = muki ;
X = pontu.

2 ?- koer(muki).
true.

3 ?- koer(miisu).
false.

4 ?- halt.

C:\jaagup\20\01\prolog>