code: def check_result(state):
      
  
      state1 = lowercase(state)
      state2 = check_all_columns(state1)
      has_equal_value(state2)
      return state2
docs: High level function which wraps other SCTs for checking results.
      
      ``check_result()``
  
      * uses ``lowercase()``, then
      * runs ``check_all_columns()`` on the state produced by ``lowercase()``, then
      * runs ``has_equal_value`` on the state produced by ``check_all_columns()``.