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