如何创建if语句，以便此prolog代码可以在n着色问题中存在冲突时发送消息

send_message(Color1, Color2) :-
    (conflict(Color1, Color2) ->
        write('There is a conflict between '),
        write(Color1),
        write(' and '),
        write(Color2),
        write('. Sending message to resolve the conflict.')
    ;
        write('No conflict between '),
        write(Color1),
        write(' and '),
        write(Color2),
        write('.')
    ).

?- send_message(red, blue).
There is a conflict between red and blue. Sending message to resolve the conflict.
true.

?- send_message(green, yellow).
No conflict between green and yellow.
true.