[ capword ] sp caplet . sp capword othword sp othword sp caplet . sp smallet capword , sp capword . , sp capword sp othword sp othword sp capword sp capword sp - sp capword capword , sp capword sp capword , sp othword sp capword sp capword . sp upword sp capword , sp year . sp [ capword ] . capword : sp othword : / / othword . othword / num . num / num - num - num - year - num