diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..5008ddf
Binary files /dev/null and b/.DS_Store differ
diff --git a/parser.rb b/parser.rb
index adaad3e..ab5ba2b 100644
--- a/parser.rb
+++ b/parser.rb
@@ -1,3 +1,5 @@
 def word_in_string?(word, string)
   # implement with your code here
+  word_regex = /(#{word}[^a-zA-Z]+.*|.*[^a-zA-Z]+#{word}|^#{word}$)/
+  string =~ word_regex ? :yes : :no
 end