...One nation, invisible.
( ... ( ( ( ( One nation ) , ) invisible ) . ) )
(ROOT (NP (: ...) (NP (CD One) (NN nation)) (, ,) (NP (JJ invisible)) (. .)))
A petty nation who didn't contribute anything to history.
( ( ( A ( petty nation ) ) ( who ( ( did n't ) ( ( contribute anything ) ( to history ) ) ) ) ) . )
(ROOT (FRAG (NP (NP (DT A) (JJ petty) (NN nation)) (SBAR (WHNP (WP who)) (S (VP (VBD did) (RB n't) (VP (VB contribute) (NP (NN anything)) (PP (TO to) (NP (NN history)))))))) (. .)))