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