def correct_case
      orig = @query.split
      latest = @message.split
      orig.each_with_index do |original_word, j|
        if i = latest.index(original_word.downcase)
          latest[i] = original_word
        end
      end
      @message = latest.join(' ')
    end
def correct_case
      orig = @query.split
      latest = @message.split
      orig.each_with_index do |original_word, j|
        if i = latest.index(original_word.downcase)
          latest[i] = original_word
        end
      end
      @message = latest.join(' ')
    end
returns any words in the query that appeared as input to their original case