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