diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index e1485c3..711c867 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -47,7 +47,9 @@ public HashMap<String, String> createPerson() {
          The method must return the value associated to the provided key from the HashMap created
          in the createPerson method
      */
-
+    public String getValue(String id) {
+        return createPerson().get(id);
+    }
 
 
     /*
@@ -57,7 +59,9 @@ public HashMap<String, String> createPerson() {
          The method must return a boolean that represents whether the string provided exists as a key
          in the provided HashMap
      */
-
+    public boolean hasKey(HashMap<String, String> map, String id){
+        return map.containsKey(id);
+    }
 
 
     /*
@@ -68,7 +72,9 @@ public HashMap<String, String> createPerson() {
          or -1 if the string provided is not a key in the HashMap
      */
 
-
+    public int getValueOrDefault(HashMap<String, Integer> map, String id) {
+        return map.getOrDefault(id, -1);
+    }
 
     /*
         TODO: 4. Complete the method below
@@ -89,6 +95,14 @@ public ArrayList<String> buildSecretPhrase(ArrayList<Integer> numbers) {
         map.put(7, "muse");
         map.put(96, "nice");
         // Write your code below this comment...
+        ArrayList<String> output = new ArrayList<>();
+
+        for (int i : numbers) {
+            if (map.containsKey(i)) {
+                output.add(map.get(i));
+            }
+        }
+
 
 
 
@@ -96,6 +110,6 @@ public ArrayList<String> buildSecretPhrase(ArrayList<Integer> numbers) {
         // ...and above this comment
 
         // Change the return statement below to return your actual ArrayList
-        return new ArrayList<String>();
+        return output;
     }
 }