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