code: def _output_text(complete_output, categories):
      
      output = ""
  
      for result in complete_output:
          list_result = complete_output[result]
          if list_result:
              list_result_sorted = sorted(list_result,
                                          key=lambda x: list_result[x],
                                          reverse=True)
              output += "\n\n{0}:\n".format(result)
              for element in list_result_sorted:
                  output += "\n{0} {1}".format(list_result[element], element)
  
      output += "\n--"
  
      return output
docs: Output the results obtained in text format.
  
      :return: str, html formatted output