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