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 was silent.
( Julius ( ( was silent ) . ) )
(ROOT (S (NP (NNP Julius)) (VP (VBD was) (ADJP (JJ silent))) (. .)))