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