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