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