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