unfortunately , that 's precisely what arthur dong 's family fundamentals does . 
(ROOT (S (ADVP (RB unfortunately)) (, ,) (NP (DT that)) (VP (VBZ 's) (SBAR (ADVP (RB precisely)) (WHNP (WP what)) (S (NP (NP (NNP arthur) (NNP dong) (POS 's)) (NN family) (NNS fundamentals)) (VP (VBZ does))))) (. .)))
(ROOT (S (ADVP (RB )) (, ) (NP (DT )) (VP (VBZ ) (SBAR (ADVP (RB )) (WHNP (WP )) (S (NP (NP (NNP ) (NNP ) (POS )) (NN ) (NNS )) (VP (VBZ ))))) (. )))