diff --git a/parser.rb b/parser.rb
index adaad3e..5e70a1f 100644
--- a/parser.rb
+++ b/parser.rb
@@ -1,3 +1,5 @@
 def word_in_string?(word, string)
-  # implement with your code here
+  val = /#{word}\W|\W#{word}|\_#{word}|#{word}\_/.match(string)
+  return :yes if val != nil
+  :no
 end