The great thing is to keep calm." Julius groaned.
( ( ( ( ( ( The ( great thing ) ) ( is ( to ( keep calm ) ) ) ) . ) '' ) ( Julius groaned ) ) . )
(ROOT (S (S (NP (DT The) (JJ great) (NN thing)) (VP (VBZ is) (S (VP (TO to) (VP (VB keep) (ADJP (JJ calm))))))) (. .) ('' '') (S (NP (NNP Julius)) (VP (VBD groaned))) (. .)))
Julius made a groaning sound.
( Julius ( ( made ( a ( groaning sound ) ) ) . ) )
(ROOT (S (NP (NNP Julius)) (VP (VBD made) (NP (DT a) (VBG groaning) (NN sound))) (. .)))