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