diff --git a/parser.rb b/parser.rb
index adaad3e..1fa7bd5 100644
--- a/parser.rb
+++ b/parser.rb
@@ -1,3 +1,4 @@
 def word_in_string?(word, string)
   # implement with your code here
+  string.match( /(?:\b|_)#{word}(?:\b|_)/ ) ? :yes : :no
 end