Julius before the safe in the flat, her own question and the pause before his reply, "Nothing." Was there really nothing? 
( ( Julius ( before ( ( the safe ) ( in ( ( ( ( ( the flat ) , ) ( her ( own question ) ) ) and ) ( ( the pause ) ( before ( ( ( his reply ) , ) ( `` ( ( Nothing . ) '' ) ) ) ) ) ) ) ) ) ) ( ( ( Was ( there really ) ) nothing ) ? ) )
(ROOT (SBARQ (WHNP (NP (NNP Julius)) (PP (IN before) (NP (NP (DT the) (NN safe)) (PP (IN in) (NP (NP (DT the) (NN flat)) (, ,) (NP (PRP$ her) (JJ own) (NN question)) (CC and) (NP (NP (DT the) (NN pause)) (PP (IN before) (NP (NP (PRP$ his) (NN reply)) (, ,) (NP (`` ``) (NNP Nothing) (. .) ('' '')))))))))) (SQ (VBD Was) (ADVP (RB there) (RB really)) (NP (NN nothing))) (. ?)))
Julius paused for a while, before answering her.
( Julius ( ( ( ( paused ( for ( a while ) ) ) , ) ( before ( answering her ) ) ) . ) )
(ROOT (S (NP (NNP Julius)) (VP (VBD paused) (PP (IN for) (NP (DT a) (NN while))) (, ,) (PP (IN before) (S (VP (VBG answering) (NP (PRP her)))))) (. .)))