title: How to reverse index a dictionary containing list of values
body: <pre><code>d = { "claims": [
                "Georg",
                "Bob",
                "Jeny",
                "John",
                "Catherin",
                "Tommen",
                "Linda",
                "Bran",
                "Sansa",
                "Ross",
                "Lyana",
                "Gilly",
                "Daario",
                "Sam",
                "Tyrion",
                "Peter",
                "Arya",
                "Sandra",
                "Catelyn"
              ],
       "names" : ["Lyana",
                "Gilly",
                "Daario",
                "Sam",
                "Tyrion",
                "Peter",
                "Arya",
                "Sandra",
                "Catelyn"]
  
            }
  
  my_dict = {value: key for key in d for value in d[key]}
  print(my_dict)
  </code></pre>