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