[ num ] sp capword sp caplet othword . sp capword - othword - othword sp othword sp othword sp othword sp othword sp othword sp othword . sp capword sp capword sp [ num ] , othword sp num – num . sp ( othword . othword . othword / num upword * . othword . caplet ) . capword : sp othword capword : sp * othword , * upword , othword sp othword , othword sp / othword , othword sp othword / othword