# We can use sets to get rid of duplicate items in other data structures like lists and tuples.
numberList = [2, 2, 4, 8, 9, 10, 8, 2, 5, 7, 3, 4, 7, 9]
numberSet = set(numberList)
print(numberSet)
# {2, 3, 4, 5, 7, 8, 9, 10}
# This is useful when you are dealing with a very large data
# set that requires only the individual unit of items returned
# instead of the number of occurrences of the items.