diff --git a/parser.rb b/parser.rb
index adaad3e..7ffbbd3 100644
--- a/parser.rb
+++ b/parser.rb
@@ -1,3 +1,11 @@
 def word_in_string?(word, string)
   # implement with your code here
+  unless string.match(/(?i)(?<=^|[^a-z])#{word}(?=$|[^a-z])/i).nil?
+    :yes
+  else
+    :no
+  end
 end
+
+
+