This function should accept a string representing the raw text (see above) and return a corresponding string in all lowercase and with the following characters removed: comma, semi-colon, colon, period, question mark, exclamation point, left square bracket, right square bracket, asterisk, left paren, right paren, dash, single quote character, and double quote character. Use a for loop to replace each of those characters with the empty character (''). This string will be referred to as the cleaned text.