diff --git a/metro.pl b/metro.pl
index 947c442..a6cbab3 100644
--- a/metro.pl
+++ b/metro.pl
@@ -18,6 +18,11 @@ solution(Vars) :-
           Bat, BrokenBottle, Gun, Knife, Sword,
           Phone, Purse, Suitcase, Violin, Watch],
   Vars ins 1..5,
+  all_distinct([Nineteen, Twentyone, Twentyfive, Thirty, Thirtyeight]),
+  all_distinct([Collision, Explosion, Kidnapping, Robbery, Vandalism]),
+  all_distinct([Hat, Jacket, Sunglasses, Tie, Turtleneck]),
+  all_distinct([Bat, BrokenBottle, Gun, Knife, Sword]),
+  all_distinct([Phone, Purse, Suitcase, Violin, Watch]),
   Hat = Purse,
   Sunglasses = Explosion,
   Jacket = Bat,