you really want to understand what this story is really all about 
(ROOT (S (NP (PRP you)) (ADVP (RB really)) (VP (VBP want) (S (VP (TO to) (VP (VB understand) (SBAR (WHNP (WP what)) (S (NP (DT this) (NN story)) (VP (VBZ is) (ADVP (RB really)) (RB all) (IN about))))))))))
(ROOT (S (NP (PRP )) (ADVP (RB )) (VP (VBP ) (S (VP (TO ) (VP (VB ) (SBAR (WHNP (WP )) (S (NP (DT ) (NN )) (VP (VBZ ) (ADVP (RB )) (RB ) (IN ))))))))))