[ num ] sp capword sp caplet . sp capword sp othword sp capword sp capword sp othword sp capword sp capword sp [ capword sp othword sp capword sp othword capword sp othword sp capword ] . sp capword , sp capword , sp capword : sp capword sp othword sp capword ; sp year . capword sp othword : sp othword : / / othword . othword . othword / othword / othword . othword .