Write a function is_anagram(word_1, word_2).  Your
    function return True if word_1 is an anagram
    of word_2.  Two words are anagrams if every letter
    (ignoring spaces and punctuation)
      occurs with the same frequency in both strings.  You can assume
    all letters are lowercase in each string.
  
Please write and test your code in the above textbox before Oct. 28th at noon.