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