[ capword - capword sp othword sp capword - capword - capword sp othword sp capword - capword ] sp capword - capword , caplet . sp othword sp caplet . sp capword - capword sp ( year , sp capword ) . sp capword sp othword sp othword sp othword sp othword sp othword sp othword sp othword sp othword othword . sp capword sp num othword sp capword sp capword sp capword sp othword sp capword sp capword sp ( upword ) , sp othword . sp num – num .