diff --git a/028_logic.py b/028_logic.py
index f7371a76..edc01c61 100644
--- a/028_logic.py
+++ b/028_logic.py
@@ -59,7 +59,7 @@ def a_or_b(a, b):
 print("Function: a_and_b")
 
 def a_and_b(a, b):
-  # return a ?? b
+  # return a AND b
   pass
 
 check_that_these_are_equal(a_and_b(True, True), True)
@@ -75,7 +75,7 @@ def a_and_b(a, b):
 # Note that this operator only takes one value. The operator
 # goes first, and the value second.
 def not_a(a):
-  # return ?? a
+  # return NOT a
   pass
 
 check_that_these_are_equal(not_a(True), False)