diff --git a/include/xtd/nlp/bag_of_words.hpp b/include/xtd/nlp/bag_of_words.hpp
index c6fe057..f347ef0 100644
--- a/include/xtd/nlp/bag_of_words.hpp
+++ b/include/xtd/nlp/bag_of_words.hpp
@@ -9,7 +9,7 @@ namespace xtd{
     class bag_of_words : std::map<std::string, uint32_t>{
     public:
       explicit bag_of_words(const xtd::string& src){
-        auto sWords = src.split();
+
       }
     };
   }
diff --git a/include/xtd/nlp/nlp.hpp b/include/xtd/nlp/nlp.hpp
index 72f16a3..d584886 100644
--- a/include/xtd/nlp/nlp.hpp
+++ b/include/xtd/nlp/nlp.hpp
@@ -7,4 +7,6 @@ namespace xtd{
   namespace nlp{
 
   }
-}
\ No newline at end of file
+}
+
+#include "bag_of_words.hpp"
\ No newline at end of file