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