ChainMap({
          'the': 0,
          'quick': 1,
          'brown': 2,
          'fox': 3,
          'jumped': 4,
          'over': 5,
          'a': 6,
          'lazy': 7,
          'dog': 8,
          },
         OrderedDict([
                      ('the', 0),
                      ('quick', 1),
                      ('brown', 2),
                      ('fox', 3),
                      ('jumped', 4),
                      ('over', 5),
                      ('a', 6),
                      ('lazy', 7),
                      ('dog', 8),
                      ]))
