1 files changed, 2 insertions, 0 deletions

diff --git a/example.pl b/example.pl
index 64f08ab..74387b1 100644
--- a/example.pl
+++ b/example.pl
@@ -32,3 +32,5 @@ length([Head|Tail], suc(Length)) :-
 :- initialization(could_be_friends(bob, sam)).
 
 :- initialization(length([a,b,c,d], Len)).
+
+:- initialization(length(_,_)).
\ No newline at end of file