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