[ capword sp num ] sp capword sp caplet . sp capword , sp capword sp caplet . sp capword sp & sp capword sp caplet . sp capword . sp capword othword sp othword : sp othword sp othword sp othword sp othword sp othword sp othword sp othword othword sp upword sp othword sp othword sp othword sp othword sp othword sp othword . capword sp capword sp othword sp capword , sp capword sp othword sp capword , othword . sp num , sp othword . sp num / num , sp othword sp num – num , sp year .