[ upword ] sp caplet . sp caplet . sp caplet . sp capword sp othword sp caplet . sp capword , sp capword . , sp capword sp othword sp capword sp capword sp capword sp upword ( capword num sp capword ) . sp capword , sp year . sp [ capword ] . sp capword : sp othword : / / othword . othword . othword / othword / num . num / num