diff --git a/concept/12-symbols.png b/concept/12-symbols.png
new file mode 100644
index 0000000..c96cf9b
Binary files /dev/null and b/concept/12-symbols.png differ
diff --git a/robotgame/level1.py b/robotgame/level1.py
index 60e814f..f6d4809 100644
--- a/robotgame/level1.py
+++ b/robotgame/level1.py
@@ -404,6 +404,9 @@ class Level1(level.Level):
         self.add_tile(task4_pos[0] + 64 * 8, task4_pos[1] - 48 * 2,
                       'moat_end_horizontal')
 
+
+        ### Task 5: The bridge.
+
         self.draw_background()
 
     def add_tile(self, x, y, img, blocking=True):