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