diff --git a/python-temel/aggregation.py b/python-temel/aggregation.py
index 9a9a8d3..6469654 100644
--- a/python-temel/aggregation.py
+++ b/python-temel/aggregation.py
@@ -13,3 +13,6 @@ a = A()
 #print(a)
 b1 = B()
 #print(b1)
+b2 = B()
+b1.seta(a)
+b2.seta(a)