diff --git a/specification/src/main/java/com/iluwatar/App.java b/specification/src/main/java/com/iluwatar/App.java
index 97bfda181..79ad39f14 100644
--- a/specification/src/main/java/com/iluwatar/App.java
+++ b/specification/src/main/java/com/iluwatar/App.java
@@ -1,6 +1,24 @@
 package com.iluwatar;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
 public class App {
     public static void main( String[] args ) {
+    	// initialize creatures list
+    	List<Creature> creatures = Arrays.asList(new Goblin(), new Octopus(), new Dragon(), new Shark(), new Troll(), new KillerBee());
+    	// find all walking creatures
+    	System.out.println("Find all walking creatures");
+    	List<Creature> walkingCreatures = creatures.stream().filter(new MovementSelector(Movement.WALKING)).collect(Collectors.toList());
+    	walkingCreatures.stream().forEach(System.out::println);
+    	// find all dark creatures
+    	System.out.println("Find all dark creatures");
+    	List<Creature> darkCreatures = creatures.stream().filter(new ColorSelector(Color.DARK)).collect(Collectors.toList());
+    	darkCreatures.stream().forEach(System.out::println);
+    	// find all red and flying creatures
+    	System.out.println("Find all red and flying creatures");
+    	List<Creature> redAndFlyingCreatures = creatures.stream().filter(new ColorSelector(Color.RED).and(new MovementSelector(Movement.FLYING))).collect(Collectors.toList());
+    	redAndFlyingCreatures.stream().forEach(System.out::println);
     }
 }