diff --git a/parser.rb b/parser.rb
index adaad3e..d6d38b7 100644
--- a/parser.rb
+++ b/parser.rb
@@ -1,3 +1,3 @@
 def word_in_string?(word, string)
-  # implement with your code here
+  string.split(/[^a-zA-Z]/).include?(word) ? :yes : :no
 end