We are assured of success?"
( We ( ( ( are ( assured ( of success ) ) ) ? ) '' ) )
(ROOT (S (NP (PRP We)) (VP (VBP are) (VP (VBN assured) (PP (IN of) (NP (NN success))))) (. ?) ('' '')))
"Are we definitely going to be successful and stay alive?" 
( `` ( ( ( Are ( we ( definitely ( going ( to ( ( ( be successful ) and ) ( stay alive ) ) ) ) ) ) ) ? ) '' ) )
(ROOT (S (`` ``) (VP (VB Are) (S (NP (PRP we)) (VP (ADVP (RB definitely)) (VBG going) (S (VP (TO to) (VP (VP (VB be) (ADJP (JJ successful))) (CC and) (VP (VB stay) (ADJP (JJ alive))))))))) (. ?) ('' '')))