diff --git a/src/robot_behaviour/robot_reproducer.py b/src/robot_behaviour/robot_reproducer.py
index bcc47caa8fdfd439ab3be56782e21c5b36066629..5d005f46aa6746841bcc2d1008c5598d4330d172 100644
--- a/src/robot_behaviour/robot_reproducer.py
+++ b/src/robot_behaviour/robot_reproducer.py
@@ -30,10 +30,10 @@ class Robot:
     self.sentences = ""
 
     self.lev_0_sentences = "your_turn.wav"
-    self.lev_1_sentences = ["Lev_1_1.wav", "Lev_1_2.wav", "Lev_1_3.wav"]
-    self.lev_2_sentences = ["Lev_2_left.wav", "Lev_2_center.wav", "Lev_2_right.wav"]
-    self.lev_3_sentences = ["D.wav", "O.wav", "M.wav", "R.wav", "E.wav",
-                            "G.wav", "L.wav", "S.wav", "U.wav", "I.wav"]
+    self.lev_1_sentences = ["Lev_1_1_.wav", "Lev_1_2_.wav", "Lev_1_3_.wav"]
+    self.lev_2_sentences = ["Lev_2_left_.wav", "Lev_2_center_.wav", "Lev_2_right_.wav"]
+    self.lev_3_sentences = ["D_.wav", "O_.wav", "M_.wav", "R_.wav", "E_.wav",
+                            "G_.wav", "L_.wav", "S_.wav", "U_.wav", "I_.wav"]
     self.end_game_sentence = "end_game.wav"
     self.instruction_sentence = "instruction.wav"
     self.move_back_sentence = "move_back.wav"
@@ -139,12 +139,12 @@ class Robot:
     b_executed = True
 
     return b_executed
+
+
   '''
   LEVELS OF ASSISTANCE FURNISHED BY THE ROBOT
   '''
 
-
-
   def assistance(self, lev_id, solution, location, counter,  delay_for_speech):
 
     if lev_id == 0: