input: Write a python function to sort a list of words alphabetically.
  assert sort_words(['banana', 'apple', 'cherry', 'date']) == ['apple', 'banana', 'cherry', 'date']
  assert sort_words(['d', 'c', 'b', 'a']) == ['a', 'b', 'c', 'd']
  assert sort_words(['zebra', 'monkey', 'lion']) == ['lion', 'monkey', 'zebra']
output: def sort_words(words):
      return sorted(words)