diff --git a/src/main.py b/src/main.py
index 5c20fb1..8150f48 100644
--- a/src/main.py
+++ b/src/main.py
@@ -1,7 +1,11 @@
 from model.frame import Frame
 from service.dialog_state_monitor import DialogStateMonitor
 from service.dialog_policy import DialogPolicy
+from service.natural_languag_understanding import NaturalLanguageUnderstanding
 
+print("Natural language understanding, example:")
+naturalLanguageUnderstanding = NaturalLanguageUnderstanding()
+print(naturalLanguageUnderstanding.convertTextToFrame("Cześć, jak masz na imię?"))
 
 # Example
 print("Dialog state monitor, examples:")
diff --git a/src/service/NaturalLanguageUnderstanding.py b/src/service/natural_languag_understanding.py
similarity index 71%
rename from src/service/NaturalLanguageUnderstanding.py
rename to src/service/natural_languag_understanding.py
index 96ae838..8e2672f 100644
--- a/src/service/NaturalLanguageUnderstanding.py
+++ b/src/service/natural_languag_understanding.py
@@ -12,7 +12,3 @@ class NaturalLanguageUnderstanding:
             if(word in self.dictionary):
                     frame+=self.dictionary[word]+"&"
         return frame[0:-1]
-
-
-naturalLanguageUnderstanding = NaturalLanguageUnderstanding()
-print(naturalLanguageUnderstanding.convertTextToFrame("Cześć, jak masz na imię?"))
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