diff --git a/06_prolog/ex1.pl b/06_prolog/ex1.pl
index 237cbb1..1f226d6 100644
--- a/06_prolog/ex1.pl
+++ b/06_prolog/ex1.pl
@@ -23,6 +23,7 @@ parent(esther,rosie).
 parent(esther,dicky).
 parent(greatgramma,esther).
 parent(randy,blair).
+parent(mike,juliet).
 
 male(mel).
 male(teo).