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