# Write a Python program to test if a variable is a list or tuple or a set.  
 #x = ['a', 'b', 'c', 'd']
#x = {'a', 'b', 'c', 'd'}
x = ('tuple', False, 3.2, 1)
if type(x) is list:
    print('x is a list')
elif type(x) is set:
    print('x is a set')
elif type(x) is tuple:
    print('x is a tuple')    
else:
    print('Neither a list or a set or a tuple.')
