diff --git a/library2/description.md b/library2/description.md
index 9e733f0..449651a 100644
--- a/library2/description.md
+++ b/library2/description.md
@@ -28,3 +28,7 @@ Output:
 ```
 1
 ```
+
+Explanation: 
+
+If you understand the word 'ok', you can understand the word 'blah'. If you understand 'ok' and 'blah', you can understand 'iz'. 'iz', and 'ok' lets you understand 'yiq'. 'yiq', 'iz', and 'blah' let you understand 'arggiq'.