"""
Do something if a variable has a certain value.
"""
val = True

if val:
	print("YES")

# Above is the same as this
if val == True:
	print("YES")


"""
Add an else statement.
"""
if val:
	print("YES")
else:
	print("NO")


"""
Use many if-tests.
"""
if val == True:
	print("TRUE")
elif val == False:
	print("FALSE")
elif val == None:
	print("NONE")
else:
	print("NO")