Julius nodded gravely.
( Julius ( ( nodded gravely ) . ) )
(ROOT (S (NP (NNP Julius)) (VP (VBD nodded) (ADVP (RB gravely))) (. .)))
Julius loves to ask questions. 
( Julius ( ( loves ( to ( ask questions ) ) ) . ) )
(ROOT (S (NP (NNP Julius)) (VP (VBZ loves) (S (VP (TO to) (VP (VB ask) (NP (NNS questions)))))) (. .)))